Destroy and reinflate bouncer before showing

Due to various bugs and settingns changes, it makes sense to entirely
refresh the bouncer view before showing. This should significantly
reduce the number of incoming bugs where bouncer is not showing or is
not responding to settings changes.

Fixes: 260958175
Fixes: 266840428
Fixes: 268226007
Fixes: 267363062
Test: open sim pin, sim puk, password, pattern, pin.
Test: change pattern visible to see changes reflected on screen.
Test: change show password characters to see changes reflected on
screen.

Change-Id: I8d7a906866888ad292bd8f813cdba99920a56884