The deadline is enforced in gatekeeper, which persists after reboot.
Users should not see the lockout timer after rebooting the device if it
was previously in lockout, until an unlock attempt occurs.
Fixes: 66443036
Test: 1) fail pattern five times
2) reboot device
3) go to bouncer, lockout timer should not show
4) upon entering pattern, timeout should show (if done fast enough)
Change-Id: Ie07945b40c2f482fd1df7102ba96283ae9d98d75
a3e5582fac