Bouncer - New PIN animations

Align all PIN views (PIN, SIM, PUK) to latest UX guidance, including
new heights and animations for color and corner radius. Mark all alpha
chars as GONE for now, and potentially remove in the near future,
pending feedback.

Bug: 172360102
Test: manual

Change-Id: I53cefb950daad29acb70c00b71b44e073ab6dac5