fix FC when unlocking password or pin screen

Change-Id: I0511b6551972617a1e2295d5c8f6bd28804b6837
add font change function

Change-Id: I5d2805ef6fe9797f538b8e586c85e30d07be8c88
 Add mechanism of auto-start management.

Change-Id: If9b9d95309f9c19802f6082600f80459a6eb80c9
Fix the defect that auto-start mechanism cause null pointer crash

Change-Id: I6468460e70d8935d4a8fd8bb9990401deec300cd