msm: camera: Fix for 8x25 camera stability issue

1. Handle Auto Focus Stop command in vfe2x driver
2. Don't move auto focus lens if current and target
   lens positions are same
3. Don't send Update command when table command is in
   progress and send a fake update ack.

CRs-fixed: 361149
Change-Id: Ib01c8c41fd14a8ad89bbfc3fabfc7fdd134caf01
Signed-off-by: Sandeep Kodimela <skodimela@codeaurora.org>
2 files changed