usb: musb: Set up function pointers for DMA

Set up function pointers for DMA so get closer to
being able to build in all the DMA engines.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/musb_dsps.c

@@ -638,6 +638,10 @@ static struct musb_platform_ops dsps_ops = {
 	.init		= dsps_musb_init,
 	.exit		= dsps_musb_exit,
 
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+	.dma_init	= cppi41_dma_controller_create,
+	.dma_exit	= cppi41_dma_controller_destroy,
+#endif
 	.enable		= dsps_musb_enable,
 	.disable	= dsps_musb_disable,