Merge "Use deterministic salt for AVB footer of prebuilt boot img" into main am: 07f84b7b

Original change: https://android-review.googlesource.com/c/platform/build/+/2794713



Change-Id: If68f49a25b1ff672d4e420c14715ff81f6b8772b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>