- Add check for keyguard drawn before stopping boot animation.
Otherwise blank screen can happen.
- Bind to keyguard service when sysui is launched to reduce waiting
time later.
- Increase keyguard timeout to 5 secs if it is not boot completed.
Otherwise (= normal screen on), keep the current 1 sec.
This timeout can still lead into blank screen so use bigger timeout
during boot-up to prevent such case.
bug: 37867510
Test: many reboots
Change-Id: Ibfdc42d295bb1d3f5b4ea316fe5aca9ab875e4be
4136d2d54b