Update NetworkStack - bump base version

BUG: 140996463
Test: Local, TH and Forrest
Exempt-From-Owner-Approval: Need this change in before next cut.
Change-Id: Ic7a033766a8efe339f181df047f90cc0aecb6a15
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index cace7e2..02ccb9a 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -19,7 +19,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.android.networkstack"
   android:sharedUserId="android.uid.networkstack"
-  android:versionCode="290000000"
+  android:versionCode="300000000"
   android:versionName="2019-09"
 >