msm: camera: Configure sensor exposure setting

While returning to preview after snapshot, preview session is
started with exposure setting of snapshot. There is a flicker in
preview screen due to this. Store exposure setting during preview
and use it while returning from snapshot.

CRs-fixed: 360384
Change-Id: Idad068f00613e4cc1d052e9b810f484173b39689
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>
2 files changed