Use new value in IMMS#reportPerceptibleAsync

In [1] there was a refactor to allow tracking the perceptible state of
multiple windows. However this introduced a small regression with
reportPerceptibleAsync now always using the current value, making it a
no-op. This fixes the issue by putting the given value in the map.

  [1]: I543d0a476eef4169eec86622e713d2063ca5fff3

Flag: EXEMPT bugfix
Test: show and hide IME in gesture nav, observe that IME nav bar buttons
  don't show too early.
Bug: 390251355
Change-Id: I45af216e6580641a9a46c4fba2f38d45f79741f6