Don't set common deps for prebuilt kernels

Change-Id: I7105f4433f656b813b43d24a21c563f026f203f5
Fix building for msm8960

The makefile assumes the lack of qcom make macros implies the occam & razor,
which is incorrect in our case. Explicitly exclude the mako from
QCOM_BSP for now, as well as any device without TARGET_USES_QCOM_BSP
set

Change-Id: I63e2d08f8c49c52e7cef8b7c1fd3e90b1b0307bd
Signed-off-by: Josue Rivera <prbassplayer@gmail.com>