tegra: dsi: Deselect CSI pads during calibration

tegra: dsi: Deselect CSI pads during calibration

Zeroing out mipical register space during DSI
calibration may lead to timeouts with camera(CSI) interface.
Instead, This fix deselects the required CSI pads
for DSI calibration to succeed

Bug 1581879

Change-Id: I535debc233589924a9548a2a1839b617e8d9da0c
Reviewed-on: http://git-master/r/665124
(cherry picked from commit f01329808d2cb0f01d6add88ed6904dfff665d74)
Signed-off-by: Vineel Kumar Reddy Kovvuri <vineelkumarr@nvidia.com>
Signed-off-by: Pankaj Dabade <pdabade@nvidia.com>
Reviewed-on: http://git-master/r/711996
GVS: Gerrit_Virtual_Submit
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>