Revert "msm: mdss: fix boot-up issues with splash thread enabled"

This reverts commit c9d48a35.

This change was pulled in as part of batch merge from different
branch. This change is not ready to be merged in the current
branch.

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

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Change-Id: I49c1ee680aa489f251c7bfb56d9c56ba86d5a5fc