input: npcx_kbd: clear pending interrupts before reenabling detection

The driver right now re-enters polling mode a couple times after the
matrix has been detected as stable as the key interrupt is still pending
and fires again once detection is reenabled.

Clear pending WUI interrupts before reenabling key press detection to
avoid that.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
1 file changed