crypto: camellia-x86_64 - fix sparse warnings (constant is so big)

Fix "constant 0xXXXXXXXXXXXXXXXX is so big it's unsigned long" sparse warnings.
Signed-off-by: NJussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>