Fixed that TTS and alert tone are in different audio channels

Now both text to speech and alert tone are using the alarm
channels.

Test: Manual
Bug: 79355649
Merged-In: Ifd29f98aa02392dcadc000df362691cfdd11e960
Change-Id: Ifd29f98aa02392dcadc000df362691cfdd11e960
(cherry picked from commit 0d332538c90796265931aa141ad3d97b63e84724)
1 file changed