Ignore Bluetooth devices doesn't have A2DP, HAP

From this CL, BluetoothRouteProvider create bluetooth route when it
supports A2DP or HAP.

Bug: 154962266
Test: manually by connecting BT keyboard. (w/o this CL it appeared)
Change-Id: I59776fa3c3b69de385a5b6ccf73df45faa50e265
1 file changed