Remove InvokeData and add ContextFinish to generate a sync point.

Change-Id: I27da8bf5fba2c8a428964cb6a5e66dd7a94958d8
diff --git a/rs.spec b/rs.spec
index 4867cad..5f76486 100644
--- a/rs.spec
+++ b/rs.spec
@@ -1,4 +1,7 @@
 
+ContextFinish {
+	handcodeApi
+	}
 
 ContextBindRootScript {
 	param RsScript sampler
@@ -261,12 +264,6 @@
 	param uint32_t slot
 	}
 
-ScriptInvokeData {
-	param RsScript s
-	param uint32_t slot
-	param void * data
-	}
-
 ScriptInvokeV {
 	param RsScript s
 	param uint32_t slot