Volume: Don't allow ringer volume of 0 exiting ringer mode.
Volume: Don't allow ringer volume of 0 exiting ringer mode.

For any device with vibration, not only voice-capable devices.

Bug: 18423530
Change-Id: I0f1a7df884d675e6bc6854dcf044426c07f3d2f7

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base