Redhat/Fedora specific as it affects the grub2-set-bootflag extension
added by Redhat to grub.
(From OE-Core rev: 40cd768368167f81de5bb55e9ff0584035f4c1b4)
Signed-off-by: Simone Weiß <simone.p.weiss@posteo.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>