usb: otg: Convert all users to pass struct usb_otg for OTG functions

This changes the otg functions so that they receive struct
otg instead of struct usb_phy as parameter and
converts all users of these functions to pass the otg member
of their usb_phy.

Includes fixes to IMX code from Sascha Hauer.

[ balbi@ti.com : fixed a compile warning on ehci-mv.c ]

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 77bbb23..75a2b30 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -727,7 +727,7 @@
 #ifdef CONFIG_USB_OTG
 			if ((hcd->self.otg_port == (wIndex + 1))
 			    && hcd->self.b_hnp_enable) {
-				otg_start_hnp(ehci->transceiver);
+				otg_start_hnp(ehci->transceiver->otg);
 				break;
 			}
 #endif