crypto: hisilicon/sec2 - fix for sec spec check

During encryption and decryption, user requests
must be checked first, if the specifications that
are not supported by the hardware are used, the
software computing is used for processing.

Fixes: 2f072d75 ("crypto: hisilicon - Add aead support on SEC2")
Signed-off-by: Wenkai Lin <linwenkai6@hisilicon.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>