Skip libdispatch build for freestanding presets (#35976)
Skip libdispatch build for freestanding presets (#35976)

Addresses rdar://74349391
gregomni/swift,apple/swift,JGiola/swift,atrick/swift,hooman/swift,rudkx/swift,parkera/swift,parkera/swift,roambotics/swift,benlangmuir/swift,tkremenek/swift,xwu/swift,parkera/swift,xwu/swift,atrick/swift,tkremenek/swift,benlangmuir/swift,gregomni/swift,gregomni/swift,rudkx/swift,glessard/swift,roambotics/swift,rudkx/swift,hooman/swift,apple/swift,ahoppen/swift,parkera/swift,benlangmuir/swift,parkera/swift,hooman/swift,gregomni/swift,ahoppen/swift,hooman/swift,atrick/swift,gregomni/swift,apple/swift,xwu/swift,atrick/swift,gregomni/swift,apple/swift,ahoppen/swift,rudkx/swift,hooman/swift,JGiola/swift,roambotics/swift,tkremenek/swift,JGiola/swift,JGiola/swift,ahoppen/swift,glessard/swift,tkremenek/swift,ahoppen/swift,roambotics/swift,atrick/swift,rudkx/swift,benlangmuir/swift,apple/swift,JGiola/swift,benlangmuir/swift,glessard/swift,parkera/swift,glessard/swift,roambotics/swift,benlangmuir/swift,hooman/swift,parkera/swift,xwu/swift,hooman/swift,glessard/swift,glessard/swift,tkremenek/swift,JGiola/swift,tkremenek/swift,xwu/swift,xwu/swift,tkremenek/swift,roambotics/swift,ahoppen/swift,apple/swift,atrick/swift,parkera/swift,rudkx/swift,xwu/swift