[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: I131ea5ef5f47a8f34d4f8066d3851c9e8b6826af
Merged-In: I7449a24427c966c1aa4280a7b7e7e70b60997cca