Make "SET non_pref_chan .." behavior more consistent

non_pref_chan is a global configuration parameter for wpa_supplicant and
the special control interface SET command handler for it was preventing
the configuration update. Make this more consistent by updating the
configuration parameter as well since that is what all the other SET
<global config param> commands do.

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

wpa_supplicant/ctrl_iface.c

@@ -527,6 +527,10 @@ static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
 #ifdef CONFIG_MBO
 	} else if (os_strcasecmp(cmd, "non_pref_chan") == 0) {
 		ret = wpas_mbo_update_non_pref_chan(wpa_s, value);
+		if (ret == 0) {
+			value[-1] = '=';
+			wpa_config_process_global(wpa_s->conf, cmd, -1);
+		}
 	} else if (os_strcasecmp(cmd, "mbo_cell_capa") == 0) {
 		wpas_mbo_update_cell_capa(wpa_s, atoi(value));
 #endif /* CONFIG_MBO */