Fix build breakage.

I rebased a change and didn't compile, my mistake.

Change-Id: Iad7fc609b08d53aa7b8b96af609e3ff9a4f0e889

telephony/java/android/telephony/RadioAccessFamily.java

@@ -188,6 +188,7 @@ public class RadioAccessFamily implements Parcelable {
                 raf = RAF_UNKNOWN;
                 break;
         }
+        return raf;
     }
 }