usb: [MIPS] fix unresolved err() reference in host/ohci-au1xxx.c

Commit af4e1ee0 (usb-next)

    "USB: remove err() macro"

was preceeded by a tree-wide cleanup of users, however this
one squeaked through the cracks because it had whitespace
between the function name and the bracket for the args.

Map it onto dev_err, just like all the "pre-commits" made
in advance of af4e1ee0, such as the example seen in
the commit d57b1772:

    "USB: ohci-xls.c: remove err() usage"

Build tested with the MIPS gpr_defconfig settings.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ohci-au1xxx.c

@@ -37,7 +37,8 @@ static int __devinit ohci_au1xxx_start(struct usb_hcd *hcd)
 		return ret;
 
 	if ((ret = ohci_run(ohci)) < 0) {
-		err ("can't start %s", hcd->self.bus_name);
+		dev_err(hcd->self.controller, "can't start %s",
+			hcd->self.bus_name);
 		ohci_stop(hcd);
 		return ret;
 	}