commit 
e47d925 (usb: move the OTG state
from the USB PHY to the OTG structure) moved
the OTG state field from struct usb_phy to
struct usb_otg but, even though I fixed many
other build breakages, I still missed one
on phy-twl4030-usb.c.
Fix the build breakage now.
While at that, also a build warning introduced
by the same commit.
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
 
        otg->gadget = gadget;
        if (!gadget)
-               otg->phy->state = OTG_STATE_UNDEFINED;
+               otg->state = OTG_STATE_UNDEFINED;
 
        return 0;
 }
 
        otg->host = host;
        if (!host)
-               otg->phy->state = OTG_STATE_UNDEFINED;
+               otg->state = OTG_STATE_UNDEFINED;
 
        return 0;
 }
        twl->phy.otg            = otg;
        twl->phy.type           = USB_PHY_TYPE_USB2;
 
-       otg->phy                = &twl->phy;
+       otg->usb_phy            = &twl->phy;
        otg->set_host           = twl4030_set_host;
        otg->set_peripheral     = twl4030_set_peripheral;