From: Sabrina Dubroca on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1619#note_8466...
In v3 I modified RH_KABI_EXCLUDE_WITH_SIZE to only exclude the new element
from the checksum, but include the reserved size, so that we can't
accidentally grow it without breaking the checksum. I also rebased and
addressed Don's and Justin's comments.