[CIFS] Missing include shows up on some architectures

Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 3499841..fdc248f 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -29,6 +29,7 @@
 #include "ntlmssp.h"
 #include "nterr.h"
 #include <linux/ctype.h>
+#include <linux/utsname.h>
 
 extern void SMBencrypt(unsigned char *passwd, unsigned char *c8,
                        unsigned char *p24);