build: simplify check using the SDK OBJECT_FORMAT
build: simplify check using the SDK OBJECT_FORMAT

_OBJECT_FORMAT was added recentlyish for all the SDKs.  Use that property rather
than enumerating all the ELFish targets.  This ensures that the code path is
correct if another ELFish target is ported to.

brentdax/swift,harlanhaskins/swift,ben-ng/swift,deyton/swift,codestergit/swift,shajrawi/swift,modocache/swift,gmilos/swift,kstaring/swift,shahmishal/swift,aschwaighofer/swift,swiftix/swift,JaSpa/swift,kperryua/swift,jtbandes/swift,jckarter/swift,arvedviehweger/swift,felix91gr/swift,huonw/swift,amraboelela/swift,JaSpa/swift,stephentyrone/swift,harlanhaskins/swift,lorentey/swift,sschiau/swift,huonw/swift,gmilos/swift,modocache/swift,return/swift,tkremenek/swift,calebd/swift,shahmishal/swift,apple/swift,jopamer/swift,nathawes/swift,deyton/swift,xedin/swift,uasys/swift,kperryua/swift,lorentey/swift,brentdax/swift,arvedviehweger/swift,rudkx/swift,Jnosh/swift,stephentyrone/swift,karwa/swift,jtbandes/swift,gribozavr/swift,karwa/swift,jmgc/swift,ben-ng/swift,russbishop/swift,JGiola/swift,return/swift,gribozavr/swift,JGiola/swift,rudkx/swift,kperryua/swift,danielmartin/swift,IngmarStein/swift,IngmarStein/swift,huonw/swift,felix91gr/swift,nathawes/swift,harlanhaskins/swift,gmilos/swift,apple/swift,frootloops/swift,tardieu/swift,return/swift,apple/swift,allevato/swift,alblue/swift,brentdax/swift,russbishop/swift,russbishop/swift,ahoppen/swift,parkera/swift,tjw/swift,swiftix/swift,karwa/swift,manavgabhawala/swift,JGiola/swift,calebd/swift,shajrawi/swift,felix91gr/swift,tjw/swift,parkera/swift,uasys/swift,calebd/swift,shajrawi/swift,djwbrown/swift,gregomni/swift,frootloops/swift,aschwaighofer/swift,codestergit/swift,gottesmm/swift,IngmarStein/swift,tjw/swift,sschiau/swift,arvedviehweger/swift,uasys/swift,ben-ng/swift,jckarter/swift,arvedviehweger/swift,bitjammer/swift,gregomni/swift,xedin/swift,milseman/swift,Jnosh/swift,zisko/swift,hughbe/swift,modocache/swift,natecook1000/swift,kstaring/swift,gribozavr/swift,tkremenek/swift,brentdax/swift,amraboelela/swift,hooman/swift,gregomni/swift,benlangmuir/swift,parkera/swift,shahmishal/swift,deyton/swift,roambotics/swift,sschiau/swift,devincoughlin/swift,glessard/swift,devincoughlin/swift,benlangmuir/swift,jopamer/swift,aschwaighofer/swift,russbishop/swift,zisko/swift,shajrawi/swift,therealbnut/swift,hooman/swift,allevato/swift,CodaFi/swift,gmilos/swift,natecook1000/swift,CodaFi/swift,rudkx/swift,tardieu/swift,airspeedswift/swift,amraboelela/swift,felix91gr/swift,felix91gr/swift,benlangmuir/swift,stephentyrone/swift,austinzheng/swift,CodaFi/swift,JaSpa/swift,kperryua/swift,gribozavr/swift,practicalswift/swift,return/swift,xwu/swift,djwbrown/swift,allevato/swift,nathawes/swift,calebd/swift,tinysun212/swift-windows,alblue/swift,hughbe/swift,xwu/swift,shajrawi/swift,karwa/swift,milseman/swift,jmgc/swift,natecook1000/swift,alblue/swift,austinzheng/swift,manavgabhawala/swift,return/swift,gmilos/swift,hughbe/swift,gregomni/swift,frootloops/swift,OscarSwanros/swift,shajrawi/swift,alblue/swift,lorentey/swift,shahmishal/swift,manavgabhawala/swift,nathawes/swift,xwu/swift,hughbe/swift,arvedviehweger/swift,CodaFi/swift,allevato/swift,sschiau/swift,lorentey/swift,jckarter/swift,roambotics/swift,natecook1000/swift,tkremenek/swift,felix91gr/swift,tinysun212/swift-windows,hughbe/swift,therealbnut/swift,natecook1000/swift,jckarter/swift,airspeedswift/swift,codestergit/swift,IngmarStein/swift,kstaring/swift,danielmartin/swift,karwa/swift,ahoppen/swift,nathawes/swift,benlangmuir/swift,OscarSwanros/swift,OscarSwanros/swift,return/swift,xedin/swift,parkera/swift,xwu/swift,swiftix/swift,hughbe/swift,jopamer/swift,Jnosh/swift,parkera/swift,hooman/swift,JGiola/swift,karwa/swift,deyton/swift,swiftix/swift,CodaFi/swift,jtbandes/swift,tinysun212/swift-windows,russbishop/swift,jckarter/swift,hughbe/swift,JaSpa/swift,ahoppen/swift,xwu/swift,arvedviehweger/swift,jopamer/swift,devincoughlin/swift,practicalswift/swift,airspeedswift/swift,djwbrown/swift,tardieu/swift,kperryua/swift,CodaFi/swift,lorentey/swift,aschwaighofer/swift,tinysun212/swift-windows,kstaring/swift,alblue/swift,gribozavr/swift,natecook1000/swift,bitjammer/swift,uasys/swift,danielmartin/swift,IngmarStein/swift,uasys/swift,zisko/swift,gregomni/swift,aschwaighofer/swift,ahoppen/swift,practicalswift/swift,swiftix/swift,alblue/swift,return/swift,bitjammer/swift,apple/swift,modocache/swift,austinzheng/swift,hooman/swift,practicalswift/swift,amraboelela/swift,sschiau/swift,deyton/swift,hooman/swift,jtbandes/swift,gottesmm/swift,hooman/swift,glessard/swift,stephentyrone/swift,shajrawi/swift,tjw/swift,atrick/swift,huonw/swift,huonw/swift,devincoughlin/swift,ben-ng/swift,apple/swift,gribozavr/swift,jckarter/swift,JGiola/swift,deyton/swift,danielmartin/swift,ahoppen/swift,apple/swift,tardieu/swift,jmgc/swift,tkremenek/swift,gottesmm/swift,atrick/swift,djwbrown/swift,frootloops/swift,austinzheng/swift,bitjammer/swift,JaSpa/swift,jmgc/swift,xedin/swift,xedin/swift,russbishop/swift,jopamer/swift,tjw/swift,lorentey/swift,rudkx/swift,OscarSwanros/swift,harlanhaskins/swift,aschwaighofer/swift,glessard/swift,parkera/swift,Jnosh/swift,therealbnut/swift,codestergit/swift,xedin/swift,parkera/swift,codestergit/swift,tardieu/swift,tjw/swift,kperryua/swift,natecook1000/swift,CodaFi/swift,rudkx/swift,milseman/swift,jmgc/swift,gmilos/swift,jopamer/swift,austinzheng/swift,OscarSwanros/swift,codestergit/swift,codestergit/swift,tinysun212/swift-windows,alblue/swift,djwbrown/swift,gottesmm/swift,calebd/swift,IngmarStein/swift,zisko/swift,tkremenek/swift,devincoughlin/swift,stephentyrone/swift,JaSpa/swift,shahmishal/swift,harlanhaskins/swift,allevato/swift,roambotics/swift,atrick/swift,tkremenek/swift,manavgabhawala/swift,sschiau/swift,glessard/swift,kstaring/swift,arvedviehweger/swift,practicalswift/swift,milseman/swift,roambotics/swift,gregomni/swift,kstaring/swift,amraboelela/swift,devincoughlin/swift,shajrawi/swift,austinzheng/swift,shahmishal/swift,airspeedswift/swift,milseman/swift,bitjammer/swift,gottesmm/swift,modocache/swift,roambotics/swift,frootloops/swift,danielmartin/swift,karwa/swift,jmgc/swift,harlanhaskins/swift,djwbrown/swift,jckarter/swift,tardieu/swift,deyton/swift,zisko/swift,practicalswift/swift,nathawes/swift,lorentey/swift,manavgabhawala/swift,atrick/swift,lorentey/swift,gottesmm/swift,glessard/swift,roambotics/swift,shahmishal/swift,tinysun212/swift-windows,OscarSwanros/swift,jtbandes/swift,harlanhaskins/swift,benlangmuir/swift,swiftix/swift,xwu/swift,brentdax/swift,devincoughlin/swift,therealbnut/swift,jopamer/swift,jtbandes/swift,parkera/swift,ahoppen/swift,nathawes/swift,uasys/swift,zisko/swift,calebd/swift,frootloops/swift,atrick/swift,jmgc/swift,aschwaighofer/swift,Jnosh/swift,sschiau/swift,stephentyrone/swift,tinysun212/swift-windows,airspeedswift/swift,tardieu/swift,therealbnut/swift,allevato/swift,huonw/swift,uasys/swift,danielmartin/swift,swiftix/swift,JaSpa/swift,xedin/swift,karwa/swift,glessard/swift,brentdax/swift,tkremenek/swift,ben-ng/swift,stephentyrone/swift,ben-ng/swift,therealbnut/swift,austinzheng/swift,russbishop/swift,manavgabhawala/swift,devincoughlin/swift,modocache/swift,milseman/swift,xedin/swift,airspeedswift/swift,gribozavr/swift,Jnosh/swift,airspeedswift/swift,danielmartin/swift,bitjammer/swift,hooman/swift,kstaring/swift,kperryua/swift,benlangmuir/swift,Jnosh/swift,djwbrown/swift,allevato/swift,amraboelela/swift,huonw/swift,tjw/swift,gottesmm/swift,practicalswift/swift,rudkx/swift,brentdax/swift,modocache/swift,sschiau/swift,therealbnut/swift,amraboelela/swift,gmilos/swift,milseman/swift,manavgabhawala/swift,xwu/swift,practicalswift/swift,JGiola/swift,felix91gr/swift,ben-ng/swift,calebd/swift,IngmarStein/swift,atrick/swift,OscarSwanros/swift,jtbandes/swift,bitjammer/swift,shahmishal/swift,zisko/swift,gribozavr/swift,frootloops/swift