Merge "camera2: Fix backward compatibility breakage for setting metering regions." into sc-dev am: 4eeeee0f am: cfdd1aa0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15451329

Change-Id: I4d238c428211d9e17b82d46cbd3efd19e8c4112b