Have psa_sim_generate.pl add psa_crypto_close() to psa_sim_crypto_server.c

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/tests/psa-client-server/psasim/src/psa_sim_generate.pl b/tests/psa-client-server/psasim/src/psa_sim_generate.pl
index ee3894f..baa060e 100755
--- a/tests/psa-client-server/psasim/src/psa_sim_generate.pl
+++ b/tests/psa-client-server/psasim/src/psa_sim_generate.pl
@@ -244,6 +244,16 @@
 }
 EOF
 
+    # Finally, add psa_crypto_close()
+
+    print $fh <<EOF;
+
+void psa_crypto_close(void)
+{
+    psa_sim_serialize_reset();
+}
+EOF
+
     close($fh);
 }