QuietHours: disable volume change tone during quiet hours

* Its quiet time, you're trying to be quiet, why would the volume
  change make noise when you're being quiet?
* Turn this off when system sounds are disabled during quiet hours

Change-Id: I6c7eb9d52f5dab9349bf2b8f72ddcb0ab45834fa
Revert "Telephony: Add data rat constant"

See http://review.cyanogenmod.org/#/c/55832/ for reasons.

This reverts commit 60f79613897f74cacceafad7bcd7260fe25bb1e5.

Change-Id: I7eea322dec1cbb3df33e4ee10d4e73fde0c6e934
Merge "QuietHours: disable volume change tone during quiet hours" into cm-11.0
Merge "Revert "Telephony: Add data rat constant"" into cm-11.0
core: added national roaming info for Tesco Mobile in Ireland.

Users of Tesco Mobile in Ireland(MCC 272 MNC 11)
  can roam on O2 Ireland (MNC 02)

Change-Id: Ie0b32d51511c2bbc726c43cdec78332397d1ecb9
Merge remote-tracking branch 'cm/cm-11.0' into wszf