Prevent stock OTA activities from running in CM

Change-Id: I3f586cd246fc351afb82c94f41329bf930f6f41a
diff --git a/prebuilt/common/bin/otablock b/prebuilt/common/bin/otablock
new file mode 100644
index 0000000..b1a93f2
--- /dev/null
+++ b/prebuilt/common/bin/otablock
@@ -0,0 +1,9 @@
+#!/system/bin/sh
+
+
+## If these activities are installed, get rid of them. We don't want updates
+## coming in from outside CM
+
+exec 2>/dev/null
+pm disable com.google.android.gsf/com.google.android.gsf.update.SystemUpdateActivity
+pm disable com.google.android.gsf/com.google.android.gsf.update.SystemUpdateService