msm: mdss: Disable display PP features if partial update is enabled

Blocking all the PP features and Histogram IOCTLs if PU status is
true which can be tracked from sysfs entry.

Change-Id: Ida20c84495b79def7dd3721a1227fe5fc7c0c17a
Signed-off-by: Nitesh Gupta <niteshg@codeaurora.org>