mpc83xx: USB: fix: access of ehci struct elements

It fixes the access to the 'ehci' struct elements for mpc83xx which
should have been taken care of in 4ef01010aa4799c759d75e67007fdd3a38c88c8a
Sorry about that.

Signed-off-by: Vivek Mahajan <vivek.mahajan@freescale.com>
Signed-off-by: Remy Bohmer <linux@bohmer.net>

cpu/mpc83xx/cpu_init.c

@@ -303,11 +303,11 @@ void cpu_init_f (volatile immap_t * im)
 	struct usb_ehci *ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR;
 
 	/* Configure interface. */
-	setbits_be32((void *)ehci->control, REFSEL_16MHZ | UTMI_PHY_EN);
+	setbits_be32(&ehci->control, REFSEL_16MHZ | UTMI_PHY_EN);
 
 	/* Wait for clock to stabilize */
 	do {
-		temp = in_be32((void *)ehci->control);
+		temp = in_be32(&ehci->control);
 		udelay(1000);
 	} while (!(temp & PHY_CLK_VALID));
 #endif