Merge "libhwc2.1: Support NS mode regamma" into udc-qpr-dev am: 83984d61fb am: c923144f46

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/google/graphics/gs101/+/23914914

Change-Id: I27a2304aeb7aaf8936bee33e37a7bc658ac09779
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>