[1/2] Base: opens music app when headset is plugged

Change-Id: Id8b7c9e9853088b4ffa3c822caac1b3f96def9bf
[1/2] base: Headset plug: Disable if music is active

PS6:
-I want to understand :)

Change-Id: I7ae31121b08fbf99c32bade8df4f291a99b1abaf