Core: Minor clean up to the veneers template

This patch provides a clean up of the template files used
for the autogeneration of the tfm_veneers.* files to use
the correct types related to psa_invec and psa_outvec.

Change-Id: I64269c891af7d75f4460ff0d7dc59cbb950ff7e9
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
diff --git a/interface/include/tfm_veneers.h.template b/interface/include/tfm_veneers.h.template
index f350fc1..9fcc1b3 100644
--- a/interface/include/tfm_veneers.h.template
+++ b/interface/include/tfm_veneers.h.template
@@ -22,7 +22,7 @@
     {% endif %}
 /******** {{manifest.manifest.name}} ********/
     {% for function in manifest.manifest.secure_functions%}
-psa_status_t tfm_{{function.tfm_symbol}}_veneer(struct psa_invec *in_vec, size_t in_len, struct psa_outvec *out_vec, size_t out_len);
+psa_status_t tfm_{{function.tfm_symbol}}_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
     {% endfor %}
     {% if manifest.attr.conditional %}
 #endif /* {{manifest.attr.conditional}} */