mx6slevk: Allow booting a device tree kernel

When the mx6slevk board support was added in U-boot there was no device tree
support for mx6sl, so only a FSL 3.0.35 was tested at that time.

Now that mx6slevk support is available we can boot a device tree kernel, by
adjusting CONFIG_LOADADDR into a proper location, so that a non-dt and a dt
kernels can be booted.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

include/configs/mx6slevk.h

@@ -59,7 +59,7 @@
 
 #define CONFIG_BOOTDELAY		3
 
-#define CONFIG_LOADADDR			0x80800000
+#define CONFIG_LOADADDR			0x82000000
 #define CONFIG_SYS_TEXT_BASE		0x87800000
 
 #define CONFIG_EXTRA_ENV_SETTINGS \