Clean up exported headers on CRIS

This fixes most of the issues with exported headers on CRIS, although
we do still need to deal with the asm/arch symlink.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/include/asm-cris/Kbuild b/include/asm-cris/Kbuild
index c68e168..14498d5 100644
--- a/include/asm-cris/Kbuild
+++ b/include/asm-cris/Kbuild
@@ -1 +1,5 @@
 include include/asm-generic/Kbuild.asm
+
+header-y += arch-v10/ arch-v32/
+
+unifdef-y += rs485.h