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/default/BroadcastRadio.cpp b/broadcastradio/1.1/default/BroadcastRadio.cpp
index 611267b..68c9b93 100644
--- a/broadcastradio/1.1/default/BroadcastRadio.cpp
+++ b/broadcastradio/1.1/default/BroadcastRadio.cpp
@@ -94,7 +94,7 @@
 }
 
 
-// Methods from ::android::hardware::broadcastradio::V1_0::IBroadcastRadio follow.
+// Methods from ::android::hardware::broadcastradio::V1_1::IBroadcastRadio follow.
 Return<void> BroadcastRadio::getProperties(getProperties_cb _hidl_cb)
 {
     int rc;
@@ -115,6 +115,11 @@
     return Void();
 }
 
+Return<void> BroadcastRadio::getProperties_1_1(getProperties_1_1_cb _hidl_cb __unused)
+{
+    return Status::fromExceptionCode(Status::EX_UNSUPPORTED_OPERATION);
+}
+
 Return<void> BroadcastRadio::openTuner(const BandConfig& config, bool audio,
     const sp<V1_0::ITunerCallback>& callback, openTuner_cb _hidl_cb)
 {