Adding quick settings flag to sysui state

- We were previously ignoring the QS state for notifications expanded since
  we were only using that flag for gating whether to allow back. But since
  we also use the state for gating swipe up, we should be explicit and
  check that both notifications are hidden and we are not in QS.

Bug: 135969043
Test: Swipe into QS, ensure the state is set
Change-Id: Ia284938e32f54998bf7aba3a051de2b30cdc0e26