disp: msm: sde: reset ctl during wr_ptr_irq timeout

wr_ptr_irq timeout signifies that the MDP is stuck
on either the current or previous frame. Handle
ctl reset and fence signalling as part of this
timeout handling. This logic would help to recover
the HW faster in case of posted-start.

Change-Id: I09b3d21772df431f9fc4a58b2fd9b4fcac4a7de7
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
Signed-off-by: Ray Zhang <rayz@codeaurora.org>
Signed-off-by: Bruce Hoo <bingchua@codeaurora.org>