checkpatch: add missing WARN argument for min_t and max_t tests

The test for bad usage of min_t() and max_t() is missing the --ignore
type.  Add it.

Signed-off-by: Hui Zhu <teawater@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9d761c9..3dfc471 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2574,7 +2574,8 @@
 				} else {
 					$cast = $cast2;
 				}
-				WARN("$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . $herecurr);
+				WARN("MINMAX",
+				     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . $herecurr);
 			}
 		}