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

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

Change-Id: I4ed1b60c3b922d1632519818ca89eba3b443ce55
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>