msm: removal of ais driver for automotive camera

None of the Auto projects as LA.HB.1.1.5 and future
projects will require MSM-3.18 hence automotive
imaging subsystem will not be required.

Change-Id: I0e991d296cdaf0384df57767f991267d4e92d6d3
Signed-off-by: Deepak Shankar <dees@codeaurora.org>