Merge "Limit the accepted length of SIM PIN to 8 digits" am: 7547a2454d

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/188723

Change-Id: Ib51176a722ab7661ca50ca72502b8091ecf58bae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>