QS: Fixes for pie

  * Fix possiblely wrong value of pie mode (not pie state).
  * collapse statusbar shutting down immersive mode to fix
pie shown even if it off.

Change-Id: If757910b61cce47d35f23177ed1e53a97fac0467
Lockscreen notification: Fix fc on hardware key devices

Change-Id: Ia6cc3a4b758174fd8eb423b0e01b1e3e1aad2eae