Rename include directory to mbedtls
diff --git a/programs/pkey/mpi_demo.c b/programs/pkey/mpi_demo.c
index c94fb97..9f013a1 100644
--- a/programs/pkey/mpi_demo.c
+++ b/programs/pkey/mpi_demo.c
@@ -21,20 +21,20 @@
  */
 
 #if !defined(POLARSSL_CONFIG_FILE)
-#include "polarssl/config.h"
+#include "mbedtls/config.h"
 #else
 #include POLARSSL_CONFIG_FILE
 #endif
 
 #if defined(POLARSSL_PLATFORM_C)
-#include "polarssl/platform.h"
+#include "mbedtls/platform.h"
 #else
 #include <stdio.h>
 #define polarssl_printf     printf
 #endif
 
 #if defined(POLARSSL_BIGNUM_C) && defined(POLARSSL_FS_IO)
-#include "polarssl/bignum.h"
+#include "mbedtls/bignum.h"
 
 #include <stdio.h>
 #endif