Camera VTS: Properly initialize Stream in various places am: 263e362091 am: 45063e6c9f am: 32b90a4a29

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/23850975

Change-Id: I6f7f697d044d47b3c5c8e15457a6f06202bc4bf3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>