Merge "ExternalCameraHAL: Fix memory leak when copying buffer fence" into main am: 634ecd5da0 am: aba897e523 am: a11d57f607

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

Change-Id: I168257bac3466f67fdb90da573402c0775a20f28
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>