media: video: tegra: Fix ov5693 preview flashing issue

Set MGC register to use sensor gain instead of real gain.

Change-Id: I949637ec50230539bccdb0acfc4e069165fba33d
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: http://git-master/r/234764
Reviewed-on: http://git-master/r/234785
(cherry picked from commit 25bd6126c61fb839411ae9570249f465b005722c)
Reviewed-on: http://git-master/r/236900
Reviewed-by: Yin-Chia Yeh <yyeh@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
1 file changed