Probably some merge issue:
psa_status_t tfm_psa_call_veneer(psa_handle_t handle, const psa_invec *in_vecs, const psa_invec *out_vecs);
Should be:
psa_status_t tfm_psa_call_veneer(psa_handle_t handle, const psa_invec *in_vecs, psa_outvec *out_vecs);