[Fix] Bluetooth device ordering

-Caused by sorting whole list
-It should sort connected devices, and then, to add all disconnected
devices from getMostRecentlyConnectedDevices()

Bug: 176850941
Test: atest LocalMediaManagerTest
Change-Id: I123e70d0616d3fab0a29658e29421ee94aec3094
(cherry picked from commit a4cf89aa)