bus: arm-ccn: Fix module autoload

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/bus/arm-ccn.ko | grep alias
$

After this patch:

$ modinfo drivers/bus/arm-ccn.ko | grep alias
alias:          of:N*T*Carm,ccn-504C*
alias:          of:N*T*Carm,ccn-504
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>

drivers/bus/arm-ccn.c

@@ -1547,6 +1547,7 @@ static const struct of_device_id arm_ccn_match[] = {
 	{ .compatible = "arm,ccn-504", },
 	{},
 };
+MODULE_DEVICE_TABLE(of, arm_ccn_match);
 
 static struct platform_driver arm_ccn_driver = {
 	.driver = {