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 int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
			   unsigned int key_len)
{
	return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
				 &tfm->crt_flags);
}

static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
			   unsigned int key_len)
{
	return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
				 &tfm->crt_flags);
}
