fs/iso9660: switch from cdrkit to xorriso to build ISO9660 images
In order to add support for EFI-compatible ISO9660 images in future
patches, this commit switch the ISO9660 logic to use xorriso instead of
cdrkit. Indeed the genimageiso tool from cdrkit doesn't have the
--efi-boot option needed to generate an image compatible with EFI BIOS.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
[yann.morin.1998@free.fr: drop superfluous tool name from variable]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>