galaxys2: libril: remove handling of uusInfo and reenable

Change-Id: I7897a5d36bb5fa51e29f5244ebfbfc81f225f6cf
Mixer: Handle write element

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
galaxys2: audio: remove some logging

Change-Id: I4c391a74f0f29a1b1a5392546f0b8c39f92c7898