Add in new layout for the pin entry screen.

Add in a new layout for the pin entry screen, which is a rough
approximation of the mocks since the visual design isn't really
there.

Bug: 36454400
Test: Booted into a user with a pin set up as a security measure
      verified that it shows up and works correctly.

Change-Id: I142526657e0051404c135abb2af031f1b2e01485
6 files changed