Add background scan routines and callbacks to broadcast radio HAL.

Bug: b/34054813
Test: existing VTS pass, none added.
Change-Id: I2009e73a9e5edc4752366fd84f67b5a745856441
diff --git a/broadcastradio/1.1/vts/functional/VtsHalBroadcastradioV1_1TargetTest.cpp b/broadcastradio/1.1/vts/functional/VtsHalBroadcastradioV1_1TargetTest.cpp
index a29f6dc..d3c05c4 100644
--- a/broadcastradio/1.1/vts/functional/VtsHalBroadcastradioV1_1TargetTest.cpp
+++ b/broadcastradio/1.1/vts/functional/VtsHalBroadcastradioV1_1TargetTest.cpp
@@ -47,6 +47,7 @@
 using ::android::hardware::broadcastradio::V1_1::ITunerCallback;
 using ::android::hardware::broadcastradio::V1_1::ProgramInfo;
 using ::android::hardware::broadcastradio::V1_1::Result;
+using ::android::hardware::broadcastradio::V1_1::ProgramListResult;
 
 
 // The main test class for Broadcast Radio HIDL HAL.
@@ -128,6 +129,14 @@
             return Void();
         }
 
+        virtual Return<void> backgroundScanComplete(ProgramListResult result __unused) {
+            return Void();
+        }
+
+        virtual Return<void> programListChanged() {
+            return Void();
+        }
+
                 MyCallback(BroadcastRadioHidlTest *parentTest) : mParentTest(parentTest) {}
 
      private: