Revert "improve build flags"

This reverts commit 3a5b364f4dfe2db8bb99895c286535ee2cdbfcfc.
Makefile: Added ARM optimizations

Conflicts:

	Makefile
Makefile: Optimizing build-options for linaro

Conflicts:

	Makefile
adding one last linaro build flag

Conflicts:
	Makefile
update build flags for CAF KK changes