- create EFI/BOOT only if UEFI boot is intended
- Fix boot support for ISO media on ppc64
add CHRP boot support for ppc64 and add xorriso option to avoid
file name reduction to MS-DOS compatible 8.3 format
- Fix initrd permissions
kiwi stored the initrd for ISO images as 600 which might
be too restrictive. This commit makes sure the initrd is
stored as 644 and Fixes bsc#1229257
OBS-URL: https://build.opensuse.org/package/show/Virtualization:Appliances:Builder/python-kiwi?expand=0&rev=262
