Make change and version bump to r_aml_300900000 for mainline module file: packages/Tethering/apex/manifest.json

Change-Id: If7bac499f32dabcb20f7482ac9e40bb73cd785db
diff --git a/Tethering/apex/manifest.json b/Tethering/apex/manifest.json
index b82c8a5..1697efd 100644
--- a/Tethering/apex/manifest.json
+++ b/Tethering/apex/manifest.json
@@ -1,4 +1,4 @@
 {
   "name": "com.android.tethering",
-  "version": 300803100
+  "version": 300900000
 }