Fix issue where keyguard wouldn't be dismissed

Keyguard wouldn't be dismissed when launching the emergency dialer
from lock screen or locked camera.

Test: Tap on 'emergency' from lock screen and camera.
Test: Unlock from lock screen and camera.
Change-Id: I5d2f0f5c6a982cf633bca19cbeb5065a9f68e355
Fixes: 64470717
(cherry picked from commit 28f9029f)