vision2: Place machine ID into board config

Let common code set the machine ID.

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/include/configs/vision2.h b/include/configs/vision2.h
index b5c7357..d95c0ba 100644
--- a/include/configs/vision2.h
+++ b/include/configs/vision2.h
@@ -41,6 +41,8 @@
 #define CONFIG_INITRD_TAG
 #define BOARD_LATE_INIT
 
+#define CONFIG_MACH_TYPE	MACH_TYPE_TTC_VISION2
+
 /*
  * Size of malloc() pool
  */