Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/util/print_binary.c b/tools/perf/util/print_binary.c
index 23e3670..599a154 100644
--- a/tools/perf/util/print_binary.c
+++ b/tools/perf/util/print_binary.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "print_binary.h"
 #include <linux/log2.h>
-#include "sane_ctype.h"
+#include <linux/ctype.h>
 
 int binary__fprintf(unsigned char *data, size_t len,
 		    size_t bytes_per_line, binary__fprintf_t printer,