PPC: Don't use legacy -usbdevice support for setting up board

It's tempting, because usbdevice_create() is so simple to use.  But
there's a lot of unwanted complexity behind the simple interface.
Switch to usb_create_simple().

Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/ppc/mac_newworld.c

@@ -420,11 +420,14 @@ static void ppc_core99_init(MachineState *machine)
 
     if (machine->usb) {
         pci_create_simple(pci_bus, -1, "pci-ohci");
+
         /* U3 needs to use USB for input because Linux doesn't support via-cuda
         on PPC64 */
         if (machine_arch == ARCH_MAC99_U3) {
-            usbdevice_create("keyboard");
-            usbdevice_create("mouse");
+            USBBus *usb_bus = usb_bus_find(-1);
+
+            usb_create_simple(usb_bus, "usb-kbd");
+            usb_create_simple(usb_bus, "usb-mouse");
         }
     }
 

hw/ppc/spapr.c

@@ -1533,9 +1533,12 @@ static void ppc_spapr_init(MachineState *machine)
 
     if (machine->usb) {
         pci_create_simple(phb->bus, -1, "pci-ohci");
+
         if (spapr->has_graphics) {
-            usbdevice_create("keyboard");
-            usbdevice_create("mouse");
+            USBBus *usb_bus = usb_bus_find(-1);
+
+            usb_create_simple(usb_bus, "usb-kbd");
+            usb_create_simple(usb_bus, "usb-mouse");
         }
     }