mfd: omap-usb-host: Update nports in platform_data

EHCI driver would need to know the number of ports available
on the platform. We set the nports parameter of platform_data
based on IP version if it was not already provided.
Signed-off-by: NRoger Quadros <rogerq@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/mfd/omap-usb-host.c

@@ -560,6 +560,7 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 			 omap->usbhs_rev, omap->nports);
 			break;
 		}
+		pdata->nports = omap->nports;
 	}
 
 	i = sizeof(struct clk *) * omap->nports;