add include/asm-m68k/unaligned.h

lib_generic/zlib.c needs include/asm/unaligned.h since commit
cd514aeb, which broke compilation for
Coldfire/M68K. This patch adds the missing header for these
architectures.

Signed-off-by: Wolfgang Wegner <w.wegner at astro-kom.de>

include/asm-m68k/unaligned.h

+#ifndef _ASM_M68K_UNALIGNED_H
+#define _ASM_M68K_UNALIGNED_H
+
+#ifdef CONFIG_COLDFIRE
+#include <linux/unaligned/be_byteshift.h>
+#else
+#include <linux/unaligned/access_ok.h>
+#endif
+
+#include <linux/unaligned/generic.h>
+
+#define get_unaligned	__get_unaligned_be
+#define put_unaligned	__put_unaligned_be
+
+#endif /* _ASM_M68K_UNALIGNED_H */