[PATCH] atl1 trivial endianness misannotations

NB: driver is choke-full of code that will break on big-endian; as long
as the hardware is onboard-only we can live with that, but sooner or
later that'll need fixing.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>