Change label of sound tile when state is changed

It is a little bit confusing for the user when the sound label is always
identical. Changing this matches the behaviours of other tiles.

PS 2:
Changed title a litte.

Change-Id: Ic94032052e05bf0626f78c05ed66690d59582be0

Conflicts:
	packages/SystemUI/res/values/cm_strings.xml
Keyguard: Make sure disabling Camera widget

This fixes the issue that Camera widget is enabled on non-camera devices
until users open up lockscreen settings

Change-Id: I599733f65ec31a16f8a8c5ee98a8a2ba6bc56c63