PKCS#7: fix missing break on OID_sha224 case

PKCS#7: fix missing break on OID_sha224 case

commit 06af9b0f4949b85b20107e6d75f5eba15111d220 upstream.

The OID_sha224 case is missing a break and it falls through
to the -ENOPKG error default.  Since HASH_ALGO_SHA224 seems
to be supported, this looks like an unintentional missing break.

Fixes: 07f081fb5057 ("PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>