[RTC]: Use SA_SHIRQ in sparc specific code.

Based upon a report from Jason Wever.
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/char/rtc.c

@@ -938,10 +938,9 @@ found:
 
 	/*
 	 * XXX Interrupt pin #7 in Espresso is shared between RTC and
-	 * PCI Slot 2 INTA# (and some INTx# in Slot 1). SA_INTERRUPT here
-	 * is asking for trouble with add-on boards. Change to SA_SHIRQ.
+	 * PCI Slot 2 INTA# (and some INTx# in Slot 1).
 	 */
-	if (request_irq(rtc_irq, rtc_interrupt, SA_INTERRUPT, "rtc", (void *)&rtc_port)) {
+	if (request_irq(rtc_irq, rtc_interrupt, SA_SHIRQ, "rtc", (void *)&rtc_port)) {
 		/*
 		 * Standard way for sparc to print irq's is to use
 		 * __irq_itoa(). I think for EBus it's ok to use %d.