sh: export empty_zero_page

ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined!
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/sh_ksyms_32.c

@@ -149,3 +149,4 @@ EXPORT_SYMBOL(clear_page);
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(__clear_user);
 EXPORT_SYMBOL(_ebss);
+EXPORT_SYMBOL(empty_zero_page);

arch/sh/kernel/sh_ksyms_64.c

@@ -44,6 +44,7 @@ EXPORT_SYMBOL(__put_user_asm_l);
 EXPORT_SYMBOL(__get_user_asm_l);
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(__copy_user);
+EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__ndelay);