[android] Fix PIC test for Android ARMv7/AArch64
[android] Fix PIC test for Android ARMv7/AArch64

For the AArch64 test, the only change is making the @PAGE piece
optional. LLVM doesn't seem to generate that part when targetting
Android or Linux.

For the ARMv7 tests, it is a little bit more complicated. Android seems
to use a different structure for PIC, which involve two labels and
instructions which are not movw/movt. To keep the iOS test undisturbed,
I added an extra check for the target-sdk-name. That allows iOS to be
the same, and Android to have their own checks. For Linux (the only
other SDK I can find that targets ARMv7), I used the Android solution,
because that seems to be what LLVM generates when using
armv7-none-linux.

aschwaighofer/swift,stephentyrone/swift,stephentyrone/swift,tkremenek/swift,JGiola/swift,gribozavr/swift,nathawes/swift,xwu/swift,allevato/swift,rudkx/swift,lorentey/swift,parkera/swift,apple/swift,shahmishal/swift,allevato/swift,xedin/swift,gregomni/swift,aschwaighofer/swift,gribozavr/swift,harlanhaskins/swift,shahmishal/swift,xwu/swift,xedin/swift,airspeedswift/swift,benlangmuir/swift,harlanhaskins/swift,jmgc/swift,lorentey/swift,shahmishal/swift,glessard/swift,glessard/swift,sschiau/swift,sschiau/swift,airspeedswift/swift,tkremenek/swift,jmgc/swift,roambotics/swift,jckarter/swift,sschiau/swift,harlanhaskins/swift,xedin/swift,roambotics/swift,xwu/swift,rudkx/swift,shahmishal/swift,devincoughlin/swift,atrick/swift,stephentyrone/swift,roambotics/swift,lorentey/swift,airspeedswift/swift,benlangmuir/swift,parkera/swift,xedin/swift,benlangmuir/swift,xwu/swift,allevato/swift,CodaFi/swift,airspeedswift/swift,parkera/swift,karwa/swift,stephentyrone/swift,roambotics/swift,devincoughlin/swift,stephentyrone/swift,ahoppen/swift,jmgc/swift,karwa/swift,CodaFi/swift,apple/swift,xedin/swift,lorentey/swift,xwu/swift,jckarter/swift,shajrawi/swift,hooman/swift,glessard/swift,shahmishal/swift,devincoughlin/swift,JGiola/swift,tkremenek/swift,roambotics/swift,jckarter/swift,benlangmuir/swift,sschiau/swift,harlanhaskins/swift,tkremenek/swift,aschwaighofer/swift,hooman/swift,allevato/swift,xedin/swift,atrick/swift,glessard/swift,JGiola/swift,jckarter/swift,ahoppen/swift,lorentey/swift,xedin/swift,gribozavr/swift,shajrawi/swift,apple/swift,CodaFi/swift,stephentyrone/swift,jckarter/swift,nathawes/swift,gribozavr/swift,shajrawi/swift,tkremenek/swift,nathawes/swift,devincoughlin/swift,shahmishal/swift,gregomni/swift,shajrawi/swift,stephentyrone/swift,gribozavr/swift,jmgc/swift,roambotics/swift,jmgc/swift,apple/swift,atrick/swift,aschwaighofer/swift,xwu/swift,hooman/swift,CodaFi/swift,aschwaighofer/swift,hooman/swift,xwu/swift,sschiau/swift,rudkx/swift,ahoppen/swift,shahmishal/swift,shajrawi/swift,shahmishal/swift,JGiola/swift,nathawes/swift,hooman/swift,glessard/swift,lorentey/swift,parkera/swift,parkera/swift,jmgc/swift,xedin/swift,shajrawi/swift,JGiola/swift,devincoughlin/swift,hooman/swift,airspeedswift/swift,tkremenek/swift,sschiau/swift,lorentey/swift,aschwaighofer/swift,gregomni/swift,apple/swift,benlangmuir/swift,parkera/swift,devincoughlin/swift,jckarter/swift,karwa/swift,tkremenek/swift,gregomni/swift,nathawes/swift,glessard/swift,karwa/swift,shajrawi/swift,gribozavr/swift,sschiau/swift,CodaFi/swift,sschiau/swift,nathawes/swift,gregomni/swift,hooman/swift,airspeedswift/swift,devincoughlin/swift,apple/swift,JGiola/swift,karwa/swift,gribozavr/swift,aschwaighofer/swift,CodaFi/swift,harlanhaskins/swift,ahoppen/swift,karwa/swift,benlangmuir/swift,lorentey/swift,atrick/swift,parkera/swift,karwa/swift,allevato/swift,CodaFi/swift,gregomni/swift,ahoppen/swift,shajrawi/swift,atrick/swift,allevato/swift,rudkx/swift,parkera/swift,nathawes/swift,ahoppen/swift,karwa/swift,harlanhaskins/swift,airspeedswift/swift,atrick/swift,jmgc/swift,harlanhaskins/swift,allevato/swift,devincoughlin/swift,gribozavr/swift,rudkx/swift,rudkx/swift,jckarter/swift