airoha: Add platform dependent list of components for upgrade

iopsys_sysupgrade() supports now a list of components to be processed
by upgrade functions, passed as a parameter to iopsys_sysupgrade().

For more details, check relevant commits adding support for FIT image
'configurations' in openwrt_core repo.

airoha/base-files/lib/upgrade/platform.sh

 platform_check_image() {
-	iopsys_check_image "$1" "$(board_name)" || return 1
+	iopsys_check_image "$1" "$(board_name)" || return
 }
 
 platform_do_upgrade() {
@@ -9,7 +9,26 @@ platform_do_upgrade() {
 		return 1
 	fi
 
-	local boot_dev=""
+	iopsys_do_upgrade "$image" "$(board_name)" "$(platform_list_image_components "$image")"  || return
+}
+
+# Tell the bootloader to boot from flash "bank" $1 next time.
+# $1: bank identifier (1 or 2)
+platform_set_bootbank() {
+	iopsys_set_bootbank "$1"
+}
+
+platform_get_bootbank() {
+	iopsys_get_bootbank
+}
+
+platform_copy_config() {
+	log sysupgrade "Copy config files"
+	iopsys_copy_config
+}
+
+__get_bootloader_device() {
+	local boot_dev="u-boot"
 	case "$(get_root_device_type)" in
 	emmc)
 		# search for device-mapper devices with specified name
@@ -30,20 +49,21 @@ platform_do_upgrade() {
 		;;
 	esac
 
-	iopsys_do_upgrade "$1" "$(board_name)" "${boot_dev}" || return
-}
-
-# Tell the bootloader to boot from flash "bank" $1 next time.
-# $1: bank identifier (1 or 2)
-platform_set_bootbank() {
-	iopsys_set_bootbank "$1"
+	echo "$boot_dev"
 }
 
-platform_get_bootbank() {
-	iopsys_get_bootbank
-}
+platform_list_image_components() {
+	local image=$1
+	local boot_dev
 
-platform_copy_config() {
-	log sysupgrade "Copy config files"
-	iopsys_copy_config
+	boot_dev="$(__get_bootloader_device)"
+	#		<type>			/configuration/<name>	<required>	<target device>
+	echo 	"pre_upgrade		upgrade_bundle		optional"
+	echo	"image				boot				required	boot\${next_bank_id}"
+	echo	"image				rootfs				required	rootfs\${next_bank_id}"
+if  bootloader_upgrade_enabled 2>/dev/null "$image" "bootloader" "$boot_dev" ; then
+	echo	"bootloader			bootloader			optional	$boot_dev"
+fi
+	echo	"u_boot_env			u-boot-env			required"
+	echo	"post_upgrade		upgrade_bundle		optional"
 }