goldfish: start ranchu-net service upon boot complete

To fix flaky network connection issue, especially in
TV

Change-Id: I557b3a8962e3301a4388ed554ca002f0e7023568
diff --git a/init.ranchu.rc b/init.ranchu.rc
index b78769d..4278df8 100644
--- a/init.ranchu.rc
+++ b/init.ranchu.rc
@@ -66,6 +66,7 @@
     setprop sys.usb.config adb
     start adbd
     start goldfish-logcat
+    start ranchu-net
 
 on property:qemu.adbd=start
     setprop sys.usb.config adb