mkfs: enable reverse mapping by default

Now that online fsck is feature complete, there's actually a compelling
story for having the reverse mappings enabled.  Turn it on by default.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
2 files changed