HH: Various building fixes:

-Only set gcc version when and when used.  Move to kernel source (1/2)
-rename AndroidBoard.mk to AndroidKernel.mk

Signed-off-by: Paul Beeler <sparksco@gmail.com>
Fix build

Signed-off-by: Paul Beeler <sparksco@gmail.com>
Merge remote-tracking branch 'aospal/kitkat' into HEAD