media: video: tegra: delay after ov5693 power on

media: video: tegra: delay after ov5693 power on

Add proper delay after power on front ov5693
sensor. This will ensure power is stable
before we start accessing i2c registers.

Bug 1484675

Change-Id: Ic90f8a6689e75347d015ec84edaf26e52fcecb1e
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: http://git-master/r/394910
Reviewed-by: Hu He <hhe@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Philip Breczinski <pbreczinski@nvidia.com>
Reviewed-by: David Schalig <dschalig@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>