Make sure ACTION_HOVER_EXIT is never sent to a ViewGroup more than once. While processing ACTION_HOVER_MOVE during exiting a hover target never send it a ACTION_HOVER_ENTER. Test: android.view.cts.HoverTest Bug: 32071138 Bug: 32071098 Change-Id: Ibc1809137907176437a3a5a4ea14b00f1c629b58