Now raid-check.service is enable and it can do raid check after every boot. We don't
want this. So disable it.
And for enable raid-check.timer, the right way is to add enalbe raid-check.timer in
/usr/lib/systemd/system-preset/90-default.preset. I already file a new bug for it
https://bugzilla.redhat.com/show_bug.cgi?id=1817491
Resolves: bz#1840519
Signed-off-by: Xiao Ni <xni@redhat.com>