ohci: fix Host Controller USBRESET

Specification says that, when entering this state, "the contents of the registers
(except Root Hub registers) are preserved by the HC. [...] The Root Hub is being reset,
which causes the Root Hub's downstream ports to be reset and possibly powered off."
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Tested-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 1450567431-31795-3-git-send-email-hpoussin@reactos.org
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/usb/hcd-ohci.c

@@ -1451,7 +1451,7 @@ static void ohci_set_ctl(OHCIState *ohci, uint32_t val)
         trace_usb_ohci_resume(ohci->name);
         break;
     case OHCI_USB_RESET:
-        ohci_hard_reset(ohci);
+        ohci_roothub_reset(ohci);
         break;
     }
 }