msm: display: update non-double-buffered register
Update non-double-buffered register to avoid flickering
or mdp hang in engine done interrupt.

Change-Id: I71e8c6e587bcf2f5eca504d884e20dd224776311
Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Sakshi Sharma <sakshis@codeaurora.org>
Signed-off-by: cholokei <leesl0416@naver.com>