sparc: copy sparc64 specific files to asm-sparc

Used the following script to copy the files:
cd include
set -e
SPARC64=`ls asm-sparc64`
for FILE in ${SPARC64}; do
	if [ -f asm-sparc/$FILE ]; then
		echo $FILE exist in asm-sparc
	else
		git mv asm-sparc64/$FILE asm-sparc/$FILE
		printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE
		git add asm-sparc64/$FILE
	fi
done

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/include/asm-sparc64/backoff.h b/include/asm-sparc64/backoff.h
index fa1fdf6..8ee26d9 100644
--- a/include/asm-sparc64/backoff.h
+++ b/include/asm-sparc64/backoff.h
@@ -1,31 +1 @@
-#ifndef _SPARC64_BACKOFF_H
-#define _SPARC64_BACKOFF_H
-
-#define BACKOFF_LIMIT	(4 * 1024)
-
-#ifdef CONFIG_SMP
-
-#define BACKOFF_SETUP(reg)	\
-	mov	1, reg
-
-#define BACKOFF_SPIN(reg, tmp, label)	\
-	mov	reg, tmp; \
-88:	brnz,pt	tmp, 88b; \
-	 sub	tmp, 1, tmp; \
-	set	BACKOFF_LIMIT, tmp; \
-	cmp	reg, tmp; \
-	bg,pn	%xcc, label; \
-	 nop; \
-	ba,pt	%xcc, label; \
-	 sllx	reg, 1, reg;
-
-#else
-
-#define BACKOFF_SETUP(reg)
-#define BACKOFF_SPIN(reg, tmp, label) \
-	ba,pt	%xcc, label; \
-	 nop;
-
-#endif
-
-#endif /* _SPARC64_BACKOFF_H */
+#include <asm-sparc/backoff.h>