vxr7200: fix dp bridge instabilities

qcom-xr-smrtvwr-misc: clean up

Cleaned up the Mipi Switch gpio from qcom-xr-smrtvwr-misc.c .
Made changes to get the dual LCD panels light up in DP mode
consistently.

Change-Id: Ib39ace9c4a9fb3c04a10e48621b7f3b89eed106e
Signed-off-by: Rajesh Bharathwaj <rajeshbharathwaj@codeaurora.org>