mx51evk: Fix CONFIG_SYS_MEMTEST_END

CONFIG_SYS_MEMTEST_END should be higher than CONFIG_SYS_MEMTEST_START.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index 3b18a18..1477b21 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -199,7 +199,7 @@
 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
 
 #define CONFIG_SYS_MEMTEST_START       0x90000000
-#define CONFIG_SYS_MEMTEST_END         0x10000
+#define CONFIG_SYS_MEMTEST_END         0x90010000
 
 #define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR