Initial change to add mock DAB stations (hardcoded for now).

Test: VtsHalBroadcastradioV2_0TargetTest

Change-Id: Ice8923490728402ed945e8cc0891fd8b2c5bf9dd
diff --git a/broadcastradio/2.0/default/VirtualRadio.h b/broadcastradio/2.0/default/VirtualRadio.h
index 9c07816..6fa70c5 100644
--- a/broadcastradio/2.0/default/VirtualRadio.h
+++ b/broadcastradio/2.0/default/VirtualRadio.h
@@ -52,6 +52,9 @@
 /** AM/FM virtual radio space. */
 extern VirtualRadio gAmFmRadio;
 
+/** DAB virtual radio space. */
+extern VirtualRadio gDabRadio;
+
 }  // namespace implementation
 }  // namespace V2_0
 }  // namespace broadcastradio