- First replacement of xyssl by polarssl where needed

diff --git a/programs/hash/hello.c b/programs/hash/hello.c
index 12e0167..f1e93ab 100644
--- a/programs/hash/hello.c
+++ b/programs/hash/hello.c
@@ -24,7 +24,7 @@
 
 #include <stdio.h>
 
-#include "xyssl/md5.h"
+#include "polarssl/md5.h"
 
 int main( void )
 {