drm/msm/sde: Add AHB based programming support for pcc v4 feature

Change adds the AHB based igc v4 feature programming support to
color processing module present in CRTC.

Change-Id: I4ce494faeec1cc4aacd2d7f84f97302c5501ca42
Signed-off-by: Rajesh Yadav <ryadav@codeaurora.org>