Settings: Fix VoiceWakeup settings crash

The activity wasn't able to launch because
of this missing entry.

Change-Id: I7a3bee2ce047a27fe16975955b2263aeeb33b8a7
Signed-off-by: Roman Birg <roman@cyngn.com>
Merge branch 'cm-11.0' of git://github.com/CyanogenMod/android_packages_apps_Settings into cd-4.4