hw/usb/hcd-ehci: Fix debug printf format string

The variable is uint64_t so needs %PRIu64 instead of %d.

Fixes: 3ae7eb88c47 ("ehci: fix overflow in frame timer code")
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250124124713.64F8C4E6031@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/usb/hcd-ehci.c

@@ -2287,7 +2287,8 @@ static void ehci_work_bh(void *opaque)
             ehci_update_frindex(ehci, skipped_uframes);
             ehci->last_run_ns += UFRAME_TIMER_NS * skipped_uframes;
             uframes -= skipped_uframes;
-            DPRINTF("WARNING - EHCI skipped %d uframes\n", skipped_uframes);
+            DPRINTF("WARNING - EHCI skipped %"PRIu64" uframes\n",
+                    skipped_uframes);
         }
 
         for (i = 0; i < uframes; i++) {