AudioDeviceBroker: fix communication route when device is disconnected

When a device selected by a communication route client is disconnected,
do not remove the communication client from the stack, but mark it
as disabled instead.

If a device of the same type is reconnected, re-enable the client.

Bug: 383642693
Test: repro steps in bug
Flag: EXEMPT bug fix
Change-Id: I778d7ac05e67f4d93a3173cadb77e69425b0423d