msm: sde: force offline rotation during hw resets

As part of hardware resets for the rotator, force the rotator
into offline rotation mode. This prevents issues with the
rotator being prematurely started again by the mdss display
hardware if it was in inline rotation mode.

Change-Id: Iff08542c894894d7a1d04384a247dd0707f1f6f6
Signed-off-by: Clarence Ip <cip@codeaurora.org>