Do not display dialog when PUK attempts remaining is 0.

When using MMI codes to set a new pin and the attempts remaining becomes
zero the lock screen, KeyguardSimPukView, will be handling resetting the
PIN using the PUK. Therefore we set the MmiCode state to CANCELLED which
causes the dialog to be dismissed. If we don't do this then after setting
the new PIN from the lock screen the dialog will still be present
indicating the user still needs to set the PIN.

Bug: 9928717
Change-Id: Ic7dc51ba684a1fd623f2cab0a89f40ef8ff491d5