i2SOM:recovery: update the boot argument when update success

When update success, it needs change the uboot environment to boot
into normal linux system.

meta-i2som-yocto/recipes-core/recovery/recovery-initramfs/recovery-initramfs-init

@@ -381,6 +381,14 @@ fi
 swupdate -i ${update_package}
 if [ "$?" = "0" ]; then
     log "Firmware update process succeed!"
+
+    if [ "$(is_nand)" = "yes" ]; then
+        fw_setenv mtdbootpart linux
+    else
+        fw_setenv mmcpart 1
+    fi
+
+    log "The device will reboot and boot into working system!!!"
 else
     quit_with_error "Error executing the firmware update"
 fi