mkinitcpio: add VERSION_ID to EFISTUB
This patch adds VERSION_ID to the built images. This helps distinguish between several kernel versions instead of having it fallback to showing file names. The sd-boot menu shows the new entires with the given kernel ID:
Old menu: * Arch Linux (arch-systemd.efi) * Arch Linux (test-efi.efi)
New menu: * Arch Linux (rolling) * Arch Linux (5.15.5-arch1-1)
Signed-off-by: Morten Linderud morten@linderud.pw
Edited by nl6720