Avoid isKeyguardShowing() before startKeyguard()

KeyguardBottomAreaView requests camera policies during its setup,
this was logging an error message because the keyguard might not
have been initialized.

Change-Id: Ia0969b4d7229e1f56d1ed0df1f33ed92995530c2
Fixes: 67649752
Test: reboot, look at logs
1 file changed