msm: mdss: Disable histogram interrupt in ISR

Histogram INTR done msg are seen when there is a sync issue
between histogram disable and histogram ISR call. To avoid
error logging, check the HIST status and disable the
histogram interrupt in ISR.

Change-Id: Ib24251a00903d9f3f20034be3d12fb1e321b4aba
Signed-off-by: Raghavendra Ambadas <rambad@codeaurora.org>