Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/proc/util.c b/fs/proc/util.c
index b161cfa..98f8adc 100644
--- a/fs/proc/util.c
+++ b/fs/proc/util.c
@@ -1,4 +1,5 @@
 #include <linux/dcache.h>
+#include "internal.h"
 
 unsigned name_to_int(const struct qstr *qstr)
 {