Clear driver PMKSA cache entry on PMKSA cache expiration

If the driver maintains its own copy of the PMKSA cache, we need to
clear an entry from the driver whenever wpa_supplicant is dropping
an old PMKSA cache entry.

src/rsn_supp/pmksa_cache.c

@@ -66,6 +66,7 @@ static void pmksa_cache_expire(void *eloop_ctx, void *timeout_ctx)
 		pmksa->pmksa = entry->next;
 		wpa_printf(MSG_DEBUG, "RSN: expired PMKSA cache entry for "
 			   MACSTR, MAC2STR(entry->aa));
+		wpa_sm_remove_pmkid(pmksa->sm, entry->aa, entry->pmkid);
 		pmksa_cache_free_entry(pmksa, entry, 0);
 	}