vpp_config: update node variants to skx and icl

Node variant names have changed to skx and icl.

Type: fix

Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: I5be832aa59e4e440df53869077d801c011e3defa
diff --git a/extras/vpp_config/data/startup.conf.template b/extras/vpp_config/data/startup.conf.template
index 9a537fd..13d86b6 100644
--- a/extras/vpp_config/data/startup.conf.template
+++ b/extras/vpp_config/data/startup.conf.template
@@ -156,10 +156,10 @@
 #node {{
 
 ## specify the preferred default variant
-#	default	{{ variant avx512 }}
+#	default	{{ variant icl }}
 
 ## specify the preferred variant, for a given node
-#	ip4-rewrite {{ variant avx2 }}
+#	ip4-rewrite {{ variant skx }}
 
 #}}