Test: MM-IOVEC: Correct return value descriptions

Change-Id: I4d2e9305f5ba5920b2f4e23a1bbd3dcbaeeb7158
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
diff --git a/test/secure_fw/suites/spm/common/service/tfm_mmiovec_test_service.h b/test/secure_fw/suites/spm/common/service/tfm_mmiovec_test_service.h
index 5d1915f..2d84230 100644
--- a/test/secure_fw/suites/spm/common/service/tfm_mmiovec_test_service.h
+++ b/test/secure_fw/suites/spm/common/service/tfm_mmiovec_test_service.h
@@ -16,7 +16,7 @@
  *
  * \param[in] msg  Pointer to the PSA message body
  *
- * \return Returns \ref TFM_SUCCESS on success.
+ * \return Returns \ref PSA_SUCCESS on success.
  */
 psa_status_t test_service_mmiovec_invec(const psa_msg_t *msg);
 
@@ -25,7 +25,7 @@
  *
  * \param[in] msg  Pointer to the PSA message body
  *
- * \return Returns \ref TFM_SUCCESS on success.
+ * \return Returns \ref PSA_SUCCESS on success.
  */
 psa_status_t test_service_mmiovec_outvec(const psa_msg_t *msg);
 
@@ -34,7 +34,7 @@
  *
  * \param[in] msg  Pointer to the PSA message body
  *
- * \return Returns \ref TFM_SUCCESS on success.
+ * \return Returns \ref PSA_SUCCESS on success.
  */
 psa_status_t test_service_outvec_not_unmap(const psa_msg_t *msg);