Hearing Aid Service Stub

This is the Hearing Aid service in Java layer.

Bug: 64038649
Test: compilation; toggling the Bluetooth on/off.
Change-Id: Ib32f140d09dd33a9f49ecb91adb8e3cfd5eb3e86
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 73a4154..ae36f1e 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -382,6 +382,14 @@
                 <action android:name="android.bluetooth.IBluetoothPbapClient" />
             </intent-filter>
         </service>
+        <service
+            android:process="@string/process"
+            android:name = ".hearingaid.HearingAidService"
+            android:enabled="@bool/profile_supported_hearing_aid">
+            <intent-filter>
+                <action android:name="android.bluetooth.IBluetoothHearingAid" />
+            </intent-filter>
+        </service>
         <!-- Authenticator for PBAP account. -->
         <service
             android:process="@string/process"