m68knommu: fix irq handler types in 68360/commproc.c

Compilation of arch/m68k/68360/commproc.c fails with the following errors:

arch/m68k/68360/commproc.c:75:1: error: function declaration isn’t a prototype
arch/m68k/68360/commproc.c:211:1: error: function declaration isn’t a prototype
arch/m68k/68360/commproc.c: In function ‘cpm_install_handler’:
arch/m68k/68360/commproc.c:214:2: warning: passing argument 2 of ‘request_irq’ from incompatible pointer type
include/linux/interrupt.h:128:1: note: expected ‘irq_handler_t’ but argument is of type ‘void (*)()’

It should be using the proper irq hander type, irq_handler_t. Modify it
to use that.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68k/include/asm/commproc.h b/arch/m68k/include/asm/commproc.h
index c67e092..f41c968 100644
--- a/arch/m68k/include/asm/commproc.h
+++ b/arch/m68k/include/asm/commproc.h
@@ -649,7 +649,7 @@
 /* #define	CPMVEC_PIO_PC4		((ushort)0x01) */
 /* #define	CPMVEC_ERROR		((ushort)0x00) */
 
-extern void cpm_install_handler(int vec, void (*handler)(void *), void *dev_id);
+extern void cpm_install_handler(int vec, irq_handler_t handler, void *dev_id);
 
 /* CPM interrupt configuration vector.
 */