We have discovered hardware that only applies boot mode / secure boot
changes during a reboot. Furthermore, the same hardware cannot update
both at the same time. To err on the safe side, reboot and wait for
the value to change if it's not changed immediately.
Co-Authored-By: Jacob Anders <janders@redhat.com>
Change-Id: I318940a76be531f453f0f5cf31a59cba16febf57