msm: mdss: Update op mode register access for calibration

Update OP_MODE register access on all source pipes for
calibration service to enable/disable PA, IGC, six
zone, etc post processing blocks.

Change-Id: Id52d7af71e0c0ad758c3ca939c8e1991c1dcf6ff
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>