include missing sys/stat.h for stat* function declarations

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Index: squashfs-tools/pseudo.c
===================================================================
--- squashfs-tools.orig/pseudo.c
+++ squashfs-tools/pseudo.c
@@ -32,6 +32,7 @@
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <sys/stat.h>
 #include <ctype.h>
 
 #include "pseudo.h"