x86: serverworks: IRQ routing needs no _p

I can find no reason for the _p on the serverworks IRQ routing logic, and
a review of the documentation contains no indication that any such delay
is needed so lets try this
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

arch/x86/pci/irq.c

@@ -461,14 +461,14 @@ static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
  */
 static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
-	outb_p(pirq, 0xc00);
+	outb(pirq, 0xc00);
 	return inb(0xc01) & 0xf;
 }
 
 static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
-	outb_p(pirq, 0xc00);
-	outb_p(irq, 0xc01);
+	outb(pirq, 0xc00);
+	outb(irq, 0xc01);
 	return 1;
 }