Add additional info to AudioPort for enum/selection API.

Add "device name" member to AudioPort.
Moved unique device ID from DevicePort to AudioPort.
Straighten out confusion between "name" and "address"
Created string constants for Intent "extra" data keys.
Combine card/address data into "address" at sender.Add additional info to AudioPort for enum/selection API.

Change-Id: I1be308e12b09cd0ead9a3e9fbc9c385462299fb5
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 4508fa7..116d0d6 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -75,7 +75,8 @@
     // indicate a change in device connection status
     virtual status_t setDeviceConnectionState(audio_devices_t device,
                                               audio_policy_dev_state_t state,
-                                          const char *device_address) = 0;
+                                              const char *device_address,
+                                              const char *device_name) = 0;
     // retrieve a device connection status
     virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
                                                                           const char *device_address) = 0;