[automerger skipped] Merge "[pm] forbid deletion of protected packages" into sc-v2-dev am: 9b19f459bb -s ours

am skip reason: Merged-In Iba408e536b340ea5d66ab499442c0c4f828fa36f with SHA-1 3ac6aa1e4d is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19943345

Change-Id: I2a22ff1ab55618d1a07531b9a8b10a00818ff8ad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>