msm: display: Add data stuctures for MSM8974 target support

Add data structures for picture adjustment, IGC, QSEED2 sharpening/smooth
feature support on MSM8974.
These data structures are needed by the hardware/qcom/display project,
which is shared between multiple jb branches, including B-family jb
branches.

Change-Id: I0e228c90b70dbe4655173b753032eaae5748f7d9
Signed-off-by: Ping Li <quicpingli@codeaurora.org>