s390/pci: Use irq_data_get_msi_desc()

No point in doing another lookup of irq_data, it's already provided as
an argument.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Link: https://lore.kernel.org/linux-s390/8735aoui07.ffs@tglx/
[agordeev@linux.ibm.com added Link tag]
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

arch/s390/pci/pci_irq.c

@@ -132,7 +132,7 @@ static int zpci_clear_irq(struct zpci_dev *zdev)
 static int zpci_set_irq_affinity(struct irq_data *data, const struct cpumask *dest,
 				 bool force)
 {
-	struct msi_desc *entry = irq_get_msi_desc(data->irq);
+	struct msi_desc *entry = irq_data_get_msi_desc(data);
 	struct msi_msg msg = entry->msg;
 	int cpu_addr = smp_cpu_get_cpu_address(cpumask_first(dest));