Android hammerhead Inline kerenl building:

Set GCC version to 4.9 default.  If you encounter a build error from a missing 4.9 toolchain remove the lines "# Custom toolchain building"
and "GCC_VERSION_ARM := 4.9"

Set gcc colors only if using a 4.9 toolchain.  This feautre is not available for older gcc versions.

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