Update GA graduation criteria

Signed-off-by: John Belamaric <[email protected]>

Author: johnbelamaric

keps/sig-node/4381-dra-structured-parameters/README.md

@@ -2756,7 +2756,9 @@ Test links:
 
 #### GA
 
-- 3 examples of real-world usage
+- At least 3 real-world driver implementations from different organizations
+- Standardization of at least one attribute suitable for intra-node topology
+  alignment across drivers.
 - Allowing time for feedback
 - Scalability and performance analysis done and published