msm: mdss: reset MDP ctl path for pingpong timeout recovery

When pingpong timeout is received, it could be due to some bad
configuration on MDP pipeline. In order to recover and have clean
HW for next frames, perform SW reset on the faulting ctl path. Also
make sure all the pipes in the bad configuration are halted
properly and does not have any residue transaction for the new
frames.

Conflicts:
	drivers/video/msm/mdss/mdss_mdp_pipe.c

Change-Id: I9a6c6cb6d004fd65c24a7fefe7457ee68af9273a
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>