[automerger skipped] Merge "Add some comments in isAlwaysOnVpnLockdownEnabled" into rvc-dev am: 19f09b23 am: 54db9642 am: 92b07746 am: e559d6db -s ours

am skip reason: Change-Id Ib9df71192937164ff95ce564195d5d68508ec69d with SHA-1 86e560c7 is in history

Change-Id: I8d2d9d461e06d34bb2497681304fd4db02f9e023