Standardize command usage messages with cmd_usage()

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c
index e914d01..7b29fd7 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -425,7 +425,7 @@
 	ulong addr;
 
 	if (argc < 3) {
-		printf ("Usage:\n%s\n", cmdtp->usage);
+		cmd_usage(cmdtp);
 		return 1;
 	}
 
@@ -455,7 +455,7 @@
 		return qe_upload_firmware((const struct qe_firmware *) addr);
 	}
 
-	printf ("Usage:\n%s\n", cmdtp->usage);
+	cmd_usage(cmdtp);
 	return 1;
 }