Merge "Make MGF1 Digest setter NotNull" into main am: 6fee432f44 am: 8eaf2a2076

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

Change-Id: I5925aa097ce2e2ca393dcc510168275a5414c5f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>