AudioService: update device info when ENCODED_SURROUND_OUTPUT changed

Fixes a bug with the ContentObserver not being registered.
Added code to also toggle the HDMI connection to force a broadcast.

Bug: 27434478
Bug: 24541671
Change-Id: If1644f4d08991ee27e3b6e10d244a704c25b5fa9
Signed-off-by: Phil Burk <philburk@google.com>
1 file changed