Finally Fixed Compiling troubles

Sorry for sloppy github commits, ill try to be more neat in the future
Linaro 4.7.x support due to compressed/makefile and compile error fixed due
to boot/makefile. Now to make it boot. Likely will need to replace
compressed/makefile due to it coming from SGS3
	modified:   arch/arm/boot/Makefile
	modified:   arch/arm/boot/compressed/Makefile
	new file:   arch/arm/boot/compressed/ashldi3.S