Convert android.hardware.broadcastradio@1.x-impl to soong.

Bug: 37512442
Test: it builds
Change-Id: If5bd21af21324e323efe3bc2fd77fe0d23560ea5
diff --git a/broadcastradio/Android.bp b/broadcastradio/Android.bp
index 5cacbf3..7a315fa 100644
--- a/broadcastradio/Android.bp
+++ b/broadcastradio/Android.bp
@@ -1,7 +1,9 @@
 // This is an autogenerated file, do not edit.
 subdirs = [
     "1.0",
+    "1.0/default",
     "1.0/vts/functional",
     "1.1",
+    "1.1/default",
     "1.1/vts/functional",
 ]