msm_fb: display: check FB_ACTIVATE_VBL bit only

FB_ACTIVATE_VBL bit is set to enable TE logic at pan_display
and unset to disable TE logic at pan_display for smart panel.
This patch checks for FB_ACTIVATE_VBL bit set only instead of
value.

CRs-fixed: 433399
Change-Id: I6fc913c6752fcca6a27c783c45ab318065217973
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
video: msm: Calibration config implementation

Allow software to selectively read/write MDP color calibration registers.
This is needed to allow calibration tool to individually configure
registers.

Change-Id: I5db2dcbca0b3433c7fedf9033ceff0cf6a5e0e1f
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
Revert "msm: display: Fix blend configuration for video layer with MDP composition"

This reverts commit d8d62f7c04f52b0a917716d006c582d86c73fa29.