[POWERPC] Fix up after irq changes

Remove struct pt_regs * from all handlers.
Also remove the regs argument from get_irq() functions.
Compile tested with arch/powerpc/config/* and
arch/ppc/configs/prep_defconfig

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-ppc/machdep.h b/include/asm-ppc/machdep.h
index da77467..293a444 100644
--- a/include/asm-ppc/machdep.h
+++ b/include/asm-ppc/machdep.h
@@ -43,7 +43,7 @@
 	/* Optional, may be NULL. */
 	unsigned int	(*irq_canonicalize)(unsigned int irq);
 	void		(*init_IRQ)(void);
-	int		(*get_irq)(struct pt_regs *);
+	int		(*get_irq)(void);
 	
 	/* A general init function, called by ppc_init in init/main.c.
 	   May be NULL. DEPRECATED ! */