Talkback: Ensure TTS stream is not affected by ringer mode.
Talkback: Ensure TTS stream is not affected by ringer mode.

Now that the policy for tablets and phones are unified, follow
the same policy when deciding which streams are never affected
by ringer mode.

Bug:16885683
Change-Id: Iaf526b391de9f429cb9e99ec18a417108443acf6

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