Comment 8 for bug 1931243

I've added the following entry to the release notes:
"
gdisk/sgdisk has an issue and writes labels byte-swapped on big endian architectures.
This is non critical and on s390x mainly affects virtio SCSI disk partition labels.
Since this was always wrong, old releases just stay that way, but starting with 1.0.8 in Impish this is solved and even allows to fix/convert old broken labels.
"