Fix cert_in_cb parsing in wpa_supplicant.conf

Commit 483dd6a5e0069d0646505c26a5194eda15472858 ('Include peer
certificate always in EAP events') added this wpa_supplicant global
configuration parameter, but forgot to add the actual parsing of it, so
there was no way of setting the value.

Signed-off-by: Jouni Malinen <j@w1.fi>

wpa_supplicant/config.c

@@ -4445,6 +4445,7 @@ static const struct global_parse_data global_fields[] = {
 	{ INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
 	{ INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
 #endif /* CONFIG_FST */
+	{ INT_RANGE(cert_in_cb, 0, 1), 0 },
 	{ INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
 	{ STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
 #ifdef CONFIG_MBO