Add missing debug strings for window types

Bug: 136250281
Bug: 136993073
Bug: 140423092
Bug: 145242835
Test: Execute "adb shell dumpsys window" and see if the window types are
      shown in strings instead of numbers.
Change-Id: I3319962ba06b4f6a426d64b65a250ba3e5dcd848
1 file changed