NotificationLight: Fix forced close on non voice capable devices

Change-Id: Ib2c1e7d22414cff3ce06936a75d9de342b32320f
Merge "NotificationLight: Fix forced close on non voice capable devices" into cm-10.2
Merge branch 'cm-10.2' of git://github.com/CyanogenMod/android_packages_apps_Settings into cm-10.2