Merge "libhwc2.1: Add HistogramController class" into udc-qpr-dev am: f3d0c5aaae

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/google/graphics/gs101/+/23667867

Change-Id: I5aaf08004608c849acd0413f81998ae20a950261
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>