Add Linaro -o3 build thx Albinoman887 & thx Ktoonsez :)

Signed-off-by: task650 <task650@gmail.com>

updates

Signed-off-by: task650 <task650@gmail.com>

Conflicts:
	Makefile
	arch/arm/configs/underwear_jf_att_defconfig
	arch/arm/mm/Makefile

Change-Id: I7f64c4ad18afaab9630d6fca0e70f4547082ca8b