[automerge] [DO NOT MERGE] Add FLAG_SECURE for ChooseLockPassword and Pattern 2p: 98e3bfdebb

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/19949403

Bug: 179725730
Change-Id: If1f5f223ce35e9eb7d038523dd663c8849426070
Merged-In: I7449a24427c966c1aa4280a7b7e7e70b60997cca