hw/pci: Fix a typo

Fix 'interrutp' typo.
Signed-off-by: NPhilippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Message-Id: <20230211152239.88106-2-philmd@linaro.org>

hw/pci/pci.c

@@ -1648,7 +1648,7 @@ void pci_device_set_intx_routing_notifier(PCIDevice *dev,
  * 9.1: Interrupt routing. Table 9-1
  *
  * the PCI Express Base Specification, Revision 2.1
- * 2.2.8.1: INTx interrutp signaling - Rules
+ * 2.2.8.1: INTx interrupt signaling - Rules
  *          the Implementation Note
  *          Table 2-20
  */