Revert "-O3 compilation fixups"

This reverts commit 4eb5490aca88af118e6add88fbcbe7962805f86f.
Revert "Makefile: Optimizing build-options for linaro"

This reverts commit 96568120d27031d554bf16509bd3ce7a8ab7369d.

Conflicts:
	Makefile
defconfig: roll back to make the phone boot