crypto-tester: Use the plugin feature key size to benchmark crypters/aeads

We previously didn't pass the key size during algorithm registration, but this
resulted in benchmarking with the "default" key size the crypter uses when
passing 0 as key size.

src/libstrongswan/plugins/plugin_feature.c

@@ -437,10 +437,12 @@ bool plugin_feature_load(plugin_t *plugin, plugin_feature_t *feature,
 	{
 		case FEATURE_CRYPTER:
 			lib->crypto->add_crypter(lib->crypto, feature->arg.crypter.alg,
+								feature->arg.crypter.key_size,
 								name, reg->arg.reg.f);
 			break;
 		case FEATURE_AEAD:
 			lib->crypto->add_aead(lib->crypto, feature->arg.aead.alg,
+								feature->arg.aead.key_size,
 								name, reg->arg.reg.f);
 			break;
 		case FEATURE_SIGNER: