Keyguard: fix lockscreen not responding after boot with pin & simpin

Since both views extend KeyguardAbsKeyInputView, there was some
confusion in the system on which view it was trying to reference, since
the pin and simpin layouts used the same IDs.

Fixes JIRA bug CYAN-3887.

Change-Id: I3d6aa696a0a690c834786c09cebc3fe056fa9598
Signed-off-by: Roman Birg <roman@cyngn.com>