vboot_ui_menu: Use volume down short press at recovery menu screen

Fix the typo made in
for usage of volume down button at recovery menu screen. It should be
short press instead of long press.

TEST=Verified that volume down short press works as expected on
recovery menu.

Change-Id: Ia9a172439ac3bbd1ea395778e83a95c988816e01
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/767059
Reviewed-by: Shelley Chen <shchen@chromium.org>
1 file changed