Revert "build: Use hard-float abi"

* Will optimize flags usage later.

This reverts commit 9bf68f8d67a5d80006d0cc8300d818d6683e6090.

from here: https://github.com/neobuddy89/hammerhead_kernel_caf/commit/1e7824536f05ed5cace4cec36e68fb047a720cb8#commitcomment-8032429

Signed-off-by: Stefanescu Cristian <howerkraft@gmail.com>

Conflicts:
	arch/arm/lib/Makefile
	arch/arm/vfp/Makefile

Signed-off-by: Stefanescu Cristian <howerkraft@gmail.com>