Update CameraStreamBuffering test and correct instance name am: 912b16f8c5

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2794200

Change-Id: If6a14f102e39d5754a4ca42d6e2857a04a6a4e60
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>