[MERGE #1926 @obastemur] osx: fix ASM files are being compiled with later OS SDK
[MERGE #1926 @obastemur] osx: fix ASM files are being compiled with later OS SDK

Merge pull request #1926 from obastemur:osx_warns_2

Minor fix for inconsistent linker target. This also shows up on embedding 3rd party.

Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore