Add missing @Deprecated annotation.

make warns when a @deprecated javadoc tag is not matched by
a corresponding annotation. The other @deprecated fields in
this class have both.

Fixes: 71706673
Test: Treehugger
Change-Id: I3749a54acc9f63dabdacac77849add34d4085561

telephony/java/com/android/internal/telephony/TelephonyIntents.java

@@ -56,6 +56,7 @@ public class TelephonyIntents {
      * by the system.
      * @deprecated use {@link Intent#ACTION_SERVICE_STATE}
      */
+    @Deprecated
     public static final String ACTION_SERVICE_STATE_CHANGED = Intent.ACTION_SERVICE_STATE;
 
     /**