Merge "Expose systemReady for SystemServer" am: 33737f6ac4 am: 7d2c52067f am: 91ee69fca8

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1640142

Change-Id: I95488b39a32ed9086839eab6c457ed6f75472df1

framework/src/android/net/ConnectivityManager.java

@@ -913,8 +913,8 @@ public class ConnectivityManager {
 
     /**
      * @hide
-     * TODO: Expose for SystemServer when becomes a module.
      */
+    @SystemApi(client = MODULE_LIBRARIES)
     public void systemReady() {
         try {
             mService.systemReady();