ponmngr: Refactorize PtP-mode detection.

ponmngr/files/airoha/lib/xpon/airoha.sh

@@ -3,7 +3,7 @@
 . /lib/functions.sh
 . /usr/share/libubox/jshn.sh
 
-apply_extra_xpon_config() {
+check_ptp_mode() {
 	local wanport enabled updated
 
 	if [ -f /etc/board.json ]; then
@@ -40,6 +40,10 @@ apply_extra_xpon_config() {
 	fi
 }
 
+apply_extra_xpon_config() {
+	check_ptp_mode
+}
+
 set_serial_number() {
 	local vendor_id="$1"
 	local vssn="$2"
@@ -84,10 +88,11 @@ apply_xpon_uci_config() {
 	configure_loid_authentication
 	configure_equipment_id
 	configure_onu_version
-	apply_extra_xpon_config
 }
 
 init_xpon() {
+	check_ptp_mode
+
 	# don't start pon daemons if xpon module is not loaded
 	[ -d /sys/module/xpon -o -d /sys/module/xpon_10g ] || return