Trigger mkinitfs on device packages upgrade

boot-deploy, which is executed by mkinitfs, relies on many stuff from deviceinfo. So, if we modify deviceinfo we need to run mkinitfs

If we don't do that we can break systems on upgrade. For example, when removing U-Boot script from device package and replacing it with deviceinfo_generate_extlinux_config="true". The upgrade will remove U-Boot script from the installation, but won't trigger mkinitfs to create extlinux config. This is what I want to be fixed

CC @craftyguy