dmaengine: moxart-dma: Fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/moxart-dma.c

@@ -652,6 +652,7 @@ static const struct of_device_id moxart_dma_match[] = {
 	{ .compatible = "moxa,moxart-dma" },
 	{ }
 };
+MODULE_DEVICE_TABLE(of, moxart_dma_match);
 
 static struct platform_driver moxart_driver = {
 	.probe	= moxart_probe,