sparc64: Add missing newline at end of file

"git diff" says:

    \ No newline at end of file

after modifying the file.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/lib/NG4clear_page.S

@@ -27,4 +27,4 @@ NG4clear_user_page:	/* %o0=dest, %o1=vaddr */
 	retl
 	 nop
 	.size		NG4clear_page,.-NG4clear_page
-	.size		NG4clear_user_page,.-NG4clear_user_page
\ No newline at end of file
+	.size		NG4clear_user_page,.-NG4clear_user_page