Fix tethering apex version to be 30xxxx series, not 29xxxx

BUG: 143747402
Change-Id: Ic1c10100837879a3b4337c7df6cfb36aea8c33c9
diff --git a/Tethering/apex/manifest.json b/Tethering/apex/manifest.json
index 3fb62f3..078302a 100644
--- a/Tethering/apex/manifest.json
+++ b/Tethering/apex/manifest.json
@@ -1,4 +1,4 @@
 {
   "name": "com.android.tethering.apex",
-  "version": 290000000
+  "version": 300000000
 }