Fix issue with system gesture areas being too large

- Currently, SystemGesturesPointerEventListener config change is only
  called when initializing and if the overlays change, which causes
  the swipe threshold to be adjusted for the display cutout touchable
  region in the other orientations as well.

  In addition, the context used to pull the status bar height is not
  updated on config changes which results the portrait status bar
  height to be used for landscape gesture recognition as well (the
  same height is used for both status and nav bar thresholds).

  Together, these two issues make the swipe area almost 3x larger, which
  conflicts with immersive games.  Instead, we should load the right
  status bar height based on the current orientation, and also
  update the thresholds when the display info changes.

Bug: 189220056
Test: Enable a display cutout on the device, open a game and try to
      swipe up near the edge
Change-Id: Ic573da624756768f8b7b600831eb0b7964720760