Add OWNERS for broadcast radio HAL 1.1.

Test: not necessary
Change-Id: I73881db46382276f56963c9d3a40cb0bdc1a2070
diff --git a/broadcastradio/1.1/default/OWNERS b/broadcastradio/1.1/default/OWNERS
new file mode 100644
index 0000000..0c27b71
--- /dev/null
+++ b/broadcastradio/1.1/default/OWNERS
@@ -0,0 +1,4 @@
+# Automotive team
+egranata@google.com
+keunyoung@google.com
+twasilczyk@google.com