Unable to set Bluetooth configuration at the first time

- initial configuration value
- add test case

Bug: 147634692
Test: make -j50 RunSettingsRoboTests
Change-Id: If55036d358d664bcbcb816a38f18019c62976d38

src/com/android/settings/development/BluetoothA2dpConfigStore.java

@@ -54,7 +54,7 @@ public class BluetoothA2dpConfigStore {
         mChannelMode = channelMode;
     }
 
-    public void setCodecSpecific1Value(int codecSpecific1Value) {
+    public void setCodecSpecific1Value(long codecSpecific1Value) {
         mCodecSpecific1Value = codecSpecific1Value;
     }