tests: EAP-EKE peer OOM in building ID message

The previous attempt at testing this path ended up selecting a different
wpabuf_alloc() call.

Signed-off-by: Jouni Malinen <j@w1.fi>

tests/hwsim/test_eap_proto.py

@@ -2215,6 +2215,7 @@ def test_eap_proto_eke_errors(dev, apdev):
               (1, "eap_eke_build_msg;eap_eke_process_id", None),
               (1, "wpabuf_alloc;eap_eke_process_id", None),
               (1, "=eap_eke_process_id", None),
+              (1, "wpabuf_alloc;=eap_eke_process_id", None),
               (1, "wpabuf_alloc;eap_eke_process_id", None),
               (1, "eap_eke_build_msg;eap_eke_process_commit", None),
               (1, "wpabuf_resize;eap_eke_process_commit", None),