Adjust PermissionMonitor#startMonitoring in ConnectivityService

Let PermissionMonitor#startMonitoring() running in the beginning
of the ConnectivityService#systemReady() before
MultipathPolicyTracker.start(). Since mApps in PermissionMonitor
needs to be populated first to ensure that listening network
request which is sent by MultipathPolicyTracker won't be added
NET_CAPABILITY_FOREGROUND capability.

Bug: 135897744
Test: atest FrameworksNetTests
Change-Id: Ibef8e7b0017a77384630d34c9edc6c40875f773e
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 81eb4b3..1a8cf89 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2185,6 +2185,11 @@
      */
     @VisibleForTesting
     public void systemReady() {
+        // Let PermissionMonitor#startMonitoring() running in the beginning of the systemReady
+        // before MultipathPolicyTracker.start(). Since mApps in PermissionMonitor needs to be
+        // populated first to ensure that listening network request which is sent by
+        // MultipathPolicyTracker won't be added NET_CAPABILITY_FOREGROUND capability.
+        mPermissionMonitor.startMonitoring();
         mProxyTracker.loadGlobalProxy();
         registerNetdEventCallback();
         mTethering.systemReady();
@@ -2205,8 +2210,6 @@
         mHandler.sendMessage(mHandler.obtainMessage(EVENT_CONFIGURE_ALWAYS_ON_NETWORKS));
 
         mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY));
-
-        mPermissionMonitor.startMonitoring();
     }
 
     /**