crypto: prefix module autoloading with "crypto-"

This prefixes all crypto module loading with "crypto-" so we never run
the risk of exposing module auto-loading to userspace via a crypto API,
as demonstrated by Mathias Krause:

https://lkml.org/lkml/2013/3/4/70

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
static void __exit wp512_mod_fini(void)
{
 	crypto_unregister_shashes(wp_algs, ARRAY_SIZE(wp_algs));
 }

static void __exit wp512_mod_fini(void)
{
 	crypto_unregister_shashes(wp_algs, ARRAY_SIZE(wp_algs));
 }
