media: video: tegra: ad5816: settle time not reach

In some systems with fast memory configuration, sometimes the settle
time is not satisfied between two set positions, especially the first
two after power on.

Implement the time counter between two set positions to maintain the
proper settle time.

bug 1237579

Change-Id: I046cbb2c9d4f55d475fe30114a58b1e2316f4efe
Signed-off-by: Charlie Huang <chahuang@nvidia.com>
Reviewed-on: http://git-master/r/220019
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Thomas Cherry <tcherry@nvidia.com>
GVS: Gerrit_Virtual_Submit
1 file changed