mx6qarm2: Allow booting a zImage kernel

Allow booting a zImage kernel.

Cc: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
diff --git a/include/configs/mx6qarm2.h b/include/configs/mx6qarm2.h
index e83aec6..90652c6 100644
--- a/include/configs/mx6qarm2.h
+++ b/include/configs/mx6qarm2.h
@@ -168,6 +168,7 @@
 #define CONFIG_SYS_MMC_ENV_DEV		1
 
 #define CONFIG_OF_LIBFDT
+#define CONFIG_CMD_BOOTZ
 
 #define CONFIG_SYS_DCACHE_OFF