[3/3] Settings: QuietHours: allow disable system sound

taken from slimroms

https://gerrit.slimroms.net/#/c/12180/

Allow to disable :
1. DialPad tone
2. touch sounds
3. screen lock sound
4. volume adjust sound
5. dock sound

in quiethour time

Change-Id: I43b7a054bc8b4cd49ddb9166e5676b329fc716f0
Merge remote-tracking branch 'omni/android-4.4' into android-4.4