
Remove need of dts binding for button keyboard since it reuses gpio-keys binding. Select gpio-keys driver if button keyboard is selected since button keyboard can not operate on its own. Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # HTC One X T30 Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>