[PARISC] Fix up parisc irq handling for genirq changes

Clean up enough to get things compiling again in the interim.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

arch/parisc/kernel/irq.c

@@ -209,7 +209,7 @@ int show_interrupts(struct seq_file *p, void *v)
 ** Then use that to get the Transaction address and data.
 */
 
-int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *type, void *data)
+int cpu_claim_irq(unsigned int irq, struct irq_chip *type, void *data)
 {
 	if (irq_desc[irq].action)
 		return -EBUSY;

include/asm-parisc/irq.h

@@ -31,7 +31,7 @@ static __inline__ int irq_canonicalize(int irq)
 	return (irq == 2) ? 9 : irq;
 }
 
-struct hw_interrupt_type;
+struct irq_chip;
 
 /*
  * Some useful "we don't have to do anything here" handlers.  Should
@@ -46,7 +46,7 @@ extern unsigned int txn_alloc_data(unsigned int);
 extern unsigned long txn_alloc_addr(unsigned int);
 extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
 
-extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
+extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
 extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
 
 /* soft power switch support (power.c) */