This is so that when focus is cleared from edit text box, the focus
fallbacks to parent view when external keyboard is used.
Bug: b/197129170
Test: Manually checked that behavior is okay when widget picker and
search is used with and without keyboard. Manually checked talkback
navigation is ok.
Change-Id: Iec2e1ff183dae20803ba2f6eb6e260d2a57779b8