[PATCH] voyager: fix boot panic by adding topology export

It looks like I can't get away without exporting topology functions from
voyager any longer, so add them to the voyager subarchitecture.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>