[PM] Fix some localization issues in PIA V2

- Fix RTL issue of the customMessage
- Change the layout_width of the title to match_parent

Flag: android.content.pm.use_pia_v2
Test: manual.
Bug: 440317796
Bug: 440307452
Change-Id: I7628be323d67731a01ef6fa49801304f151b1635
2 files changed