Phone: PIN2 shouldn't be seen when make passwords invisible

Since the attribute android:imeOptions is set to actionDone,
and as the result after rotating the phone, the EditText become
full screen, and the content of EditText can be seen.

Change the attribute android:imeOptions to flagNoFullscreen.

CRs-Fixed: 426558

Change-Id: Id1a7106c32d46a89e1332114143cad470050dd3c