board-msm7627a: display: Add settling delay for display resume.

This change adds minimal delay to allow for settling time
of MIPI DSI Bridge reset chip after it comes out of the
reset sequence.

CRs-fixed: 405241
Change-Id: I577e68abc926a8f6d6987d7d016922fa0b31f846
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>