Add new "pin complex" type to supported keyguard PINs

This adds a feature to allow DevicePolicyAdmins to prevent using
simple PINs, which are defined as those containing more than 3
repeated values. Examples include '1234', '2468', '1111', '9876', etc.

Bug 12081139

Change-Id: I4c7ae51730c23ad8050e6216a62a8038d9c645a6
2 files changed