Forward port CM Screen Security settings (1/2)

 * Variable size pattern lockscreen
 * Toggle dots/error pattern visibility

Change-Id: Ie109e82c1fb2fd96b07e977e1cd76ae3acb865ff

Fix pattern visibility settings (1/2)

Change-Id: Ic627953c5df854c442671a98b5da539b994da18b

LockPatternUtils: Use the actual user id to set pattern size

Ticket: CYNGNOS-2462
Change-Id: Ia68e26ec2dfc23317135d933bc25204c1380bb02

LockSettings: fix build

Change-Id: Ic65b1a2af398faffb83776ee4013d47f79ab6619
Signed-off-by: Roman Birg <roman@cyngn.com>