Update CredentialServiceImpl.java

Author: jyothisaroja

core/src/main/java/org/openstack4j/openstack/identity/v3/internal/CredentialServiceImpl.java

@@ -10,9 +10,8 @@
 import org.openstack4j.model.identity.v3.Credential;
 import org.openstack4j.openstack.identity.v3.domain.KeystoneCredential;
 import org.openstack4j.openstack.identity.v3.domain.KeystoneCredential.Credentials;
-import org.openstack4j.openstack.internal.BaseOpenStackService;
 
-public class CredentialServiceImpl extends BaseOpenStackService implements CredentialService {
+public class CredentialServiceImpl extends BaseIdentityServices implements CredentialService {
 
     @Override
     public Credential create(Credential credential) {