scripts/git.orderfile: Display Cocci scripts before code modifications

When we use a Coccinelle semantic script to do automatic
code modifications, it makes sense to look at the semantic
patch first.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

scripts/git.orderfile

@@ -22,6 +22,9 @@ Makefile*
 qapi/*.json
 qga/*.json
 
+# semantic patches
+*.cocci
+
 # headers
 *.h