scripts/coccinelle: Update unsigned suffix script

Update unsigned suffix script to properly match multiplication.
Fix provided by Himanshu Jha.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
diff --git a/scripts/coccinelle/unsigned_suffix.cocci b/scripts/coccinelle/unsigned_suffix.cocci
index f63e288..cb48d7b 100644
--- a/scripts/coccinelle/unsigned_suffix.cocci
+++ b/scripts/coccinelle/unsigned_suffix.cocci
@@ -100,9 +100,8 @@
 - C
 + z
 |
-  v *
-- C
-+ z
+- v * C
++ v * z
 |
   v /
 - C