libhwc2.1: update render intent for backlight controller am: a319811cfa am: d7236669e8 am: 6748841a89

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/google/graphics/gs101/+/23657207

Change-Id: Ia6cb915abe6c690ed0e804b190f920be03b161c4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>