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: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 35a96e7..2520fac 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -560,6 +560,7 @@
 			 omap->usbhs_rev, omap->nports);
 			break;
 		}
+		pdata->nports = omap->nports;
 	}
 
 	i = sizeof(struct clk *) * omap->nports;