Merge "libhwc2.1: move getRefreshRate() out of class OperationRateManager" into udc-dev am: 62db04ddf0 am: ac2244a3bb

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/google/graphics/zuma/+/22539519

Change-Id: I79b6f3f31627c54eceaa55a589d2ce95508ca017
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>