ap_set_security: Allow ECGroupID to include a list of groups

This allows a space separated list of allowed groups to be listed for
SAE.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
diff --git a/sigma_dut.c b/sigma_dut.c
index 60ecd21..733d102 100644
--- a/sigma_dut.c
+++ b/sigma_dut.c
@@ -1066,6 +1066,7 @@
 	free(sigma_dut.btm_query_cand_list);
 	sigma_dut.btm_query_cand_list = NULL;
 	free(sigma_dut.rsne_override);
+	free(sigma_dut.ap_sae_groups);
 	sigma_dut_unreg_cmds(&sigma_dut);
 
 	return 0;