[POWERPC] Fix interrupt clearing in kdump shutdown sequence

Call chip->eoi(irq) to clear any pending interrupt in case of kdump
shutdown sequence.  chip->end(irq) does not serve this purpose.
Signed-off-by: NMohan Kumar M <mohan@in.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/kernel/crash.c

@@ -295,7 +295,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 		struct irq_desc *desc = irq_desc + irq;
 
 		if (desc->status & IRQ_INPROGRESS)
-			desc->chip->end(irq);
+			desc->chip->eoi(irq);
 
 		if (!(desc->status & IRQ_DISABLED))
 			desc->chip->disable(irq);