msm:mdss: Add gamma correction LUT feature for DSPP

Add gamma correction LUT feature for DSPP and define flags to
differentiate between gamma correction on layer mixer and DSPP.

Change-Id: I626324587bd9c7c00e3e053d101959e54b218eac
Signed-off-by: Ping Li <quicpingli@codeaurora.org>
3 files changed