Settings: init correctly LockPatternUtils on configuration changes

Steps to reproduce:
- go to security pattern choice
- turn the screen to landscape
- result: crash

LockPatternUtils instance was not passed trough to LockPatternView.
Hence the crash and NullPointerExcpetion.

Fix it with correct initiliaze LockPatternUtils.

Change-Id: I38b495030b2c454effc901854bdcabfcbc10219a
add option to force high-end graphics on low memory devices
Change-Id: I34e0d7381615485b58385abed743e01f7272772d