Merge "Make MGF1 Digest setter NotNull" into main am: 6fee432f44 am: f26151a937

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2832673

Change-Id: I991341d25aedca679f5d2701897254430fdf5894
Signed-off-by: Automerger Merge Worker <[email protected]>