Make change and version bump to r_aml_300802800 for mainline module file: manifest.json

Change-Id: I6026287a7938e49ae994851128eeec246dd9f6b2
diff --git a/manifest.json b/manifest.json
index 64a6aee..04ade14 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,4 +1,4 @@
 {
   "name": "com.android.sdkext",
-  "version": 300802700
+  "version": 300802800
 }