fix ks account options

cmd/ks-iam/app/options/validation.go

@@ -0,0 +1,11 @@
+package options
+
+func (s *ServerRunOptions) Validate() []error {
+	errs := []error{}
+
+	errs = append(errs, s.KubernetesOptions.Validate()...)
+	errs = append(errs, s.GenericServerRunOptions.Validate()...)
+	errs = append(errs, s.LdapOptions.Validate()...)
+
+	return errs
+}