[PATCH] clean up compiler warnings in m68knommu machdep.h

This patch includes seq_file.h in the m68knommu machdep.h header.
Cleans up warnings caused by function prototypes.

include/asm-m68knommu/machdep.h

 #ifndef _M68KNOMMU_MACHDEP_H
 #define _M68KNOMMU_MACHDEP_H
 
+#include <linux/seq_file.h>
+
 struct pt_regs;
 struct kbd_repeat;
 struct mktime;