Merge "ExternalCameraHAL: Fix memory leak when copying buffer fence" into main am: 634ecd5da0 am: 58071a4166 am: 36346f29e2

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2817883

Change-Id: If31feb91d7a3b7ae45b0e63ee521a4662a3fbfc1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>