Merge "Camera: Add framework-only enum value to test pattern mode" into sc-dev...

Merge "Camera: Add framework-only enum value to test pattern mode" into sc-dev am: 0dd1d390 am: 8591da6d

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/14752518

Change-Id: I901f6bafc72a2cb9a8a5e486a0d25d7b8355e3dc