Add graphite for CC/CPP and also host CC/CXX
Decrease kernel building time

Signed-off-by: Paul Beeler <pbeeler80@gmail.com>
use $(KERNEL_DIR) to simplify some things
Some small cleanups and update defconfig

Signed-off-by: Paul Beeler <pbeeler80@gmail.com>
Merge remote-tracking branch 'aospal/kk-4.4.2' into kk-4.4.2

Conflicts:
	Makefile