[CRYPTO] hifn_795x: Detect weak keys

HIFN driver update to use DES weak key checks (exported in this patch).

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --cc crypto/des_generic.c
Simple merge

diff --cc drivers/crypto/Kconfig
Simple merge

diff --cc drivers/crypto/hifn_795x.c
Simple merge