crypto: ecdh - extend 'cra_driver_name' with curve name

Currently, 'cra_driver_name' cannot be used to specify ecdh algorithm
with a special curve, so extending it with curve name.

Although using 'cra_name' can also specify a special curve, but ecdh
generic driver cannot be specified when vendor hardware accelerator
has registered.

Fixes: 6763f5ea ("crypto: ecdh - move curve_id of ECDH from ...")
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/ecdh.c

@@ -141,7 +141,7 @@ static struct kpp_alg ecdh_nist_p192 = {
 	.init = ecdh_nist_p192_init_tfm,
 	.base = {
 		.cra_name = "ecdh-nist-p192",
-		.cra_driver_name = "ecdh-generic",
+		.cra_driver_name = "ecdh-nist-p192-generic",
 		.cra_priority = 100,
 		.cra_module = THIS_MODULE,
 		.cra_ctxsize = sizeof(struct ecdh_ctx),
@@ -166,7 +166,7 @@ static struct kpp_alg ecdh_nist_p256 = {
 	.init = ecdh_nist_p256_init_tfm,
 	.base = {
 		.cra_name = "ecdh-nist-p256",
-		.cra_driver_name = "ecdh-generic",
+		.cra_driver_name = "ecdh-nist-p256-generic",
 		.cra_priority = 100,
 		.cra_module = THIS_MODULE,
 		.cra_ctxsize = sizeof(struct ecdh_ctx),