avr32: export copy_page

This patch fixes the following build error:

<--  snip  -->

...
  MODPOST 61 modules
ERROR: "copy_page" [fs/fuse/fuse.ko] undefined!
...
make[2]: *** [__modpost] Error 1

<--  snip  -->

Also add an empty line since *_page aren't "String functions".
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

arch/avr32/kernel/avr32_ksyms.c

@@ -29,7 +29,9 @@ EXPORT_SYMBOL(__avr32_asr64);
  */
 EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(memcpy);
+
 EXPORT_SYMBOL(clear_page);
+EXPORT_SYMBOL(copy_page);
 
 /*
  * Userspace access stuff.