crypto: tcrypt - Speed testing support for ghash

Because ghash needs setkey, the setkey and keysize template support
for test_hash_speed is added.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --cc crypto/tcrypt.c
Simple merge

diff --cc crypto/tcrypt.h
Simple merge