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>
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
Fix hh defconfig
Merge branch 'kk-4.4.2' of https://github.com/AOSPAL/android_kernel_lge_hammerhead-sts into kk-4.4.2

Conflicts:
	AndroidKernel.mk
Fix hh defconfig
Merge remote-tracking branch 'aospal/master'