Set P2p statemachine's network manager before starting Wifi

Wifi statemachine starts P2p statemachine; which uses network management
service to (i.e. netd) to start p2p0 interface. But it only gets a
reference to network management service in conenctivityServiceReady().
Calling that later means there's a chance of a race between this
thread's setting of the network manager, and P2p statemachine thread's
usage of the same.

Bug: 11048296
Change-Id: If151026ed5fbb12db57ee7f9bdd47c67dd7142e5
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index ef50df7..0e0f156 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -515,8 +515,9 @@
                     ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity);
                     networkStats.bindConnectivityManager(connectivity);
                     networkPolicy.bindConnectivityManager(connectivity);
-                    wifi.checkAndStartWifi();
+
                     wifiP2p.connectivityServiceReady();
+                    wifi.checkAndStartWifi();
                 } catch (Throwable e) {
                     reportWtf("starting Connectivity Service", e);
                 }