Initial configs
Makefile: removed hardcoded toolchain, O3 and Cortex A15 optimizations, ccache

Signed-off-by: LaboDJ <jacopolabardi@gmail.com>

Conflicts:
	Makefile
Vfp Makefile: A15 optimizations

Signed-off-by: LaboDJ <jacopolabardi@gmail.com>
Fix warnings and compilation errors with gcc 4.8

Signed-off-by: LaboDJ <jacopolabardi@gmail.com>
scsi: disable module compiling

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>