s3: go straight to winbindd_dual_pam_auth() in case of !NT_STATUS_OK

At the formerly used process_result statement we have alone one
NT_STATUS_IS_OK() which never could be hit in our case as we only go here
if NT_STATUS_EQUAL is not ok.

source3/winbindd/winbindd_pam.c

@@ -1549,7 +1549,7 @@ enum winbindd_result winbindd_dual_pam_auth(struct winbindd_domain *domain,
 		    NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_EXPIRED) ||
 		    NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_MUST_CHANGE) ||
 		    NT_STATUS_EQUAL(result, NT_STATUS_WRONG_PASSWORD)) {
-			goto process_result;
+			goto done;
 		}
 
 		if (state->request->flags & WBFLAG_PAM_FALLBACK_AFTER_KRB5) {