Paired BT devices are not displaying in volume control panel

-Add selected device into list
-getTransferableRoutes() logic is changed at ag/15426495

Bug: 195266049
Test: make -j50 RunSettingsLibRoboTests ROBOTEST_FILTER=InfoMediaManagerTest
Change-Id: I127bf7fabf42bbbd7e90a9193bf1f4ff5a35dc6f
2 files changed