LU-11845 zfs: put configure checks in version order

LU-11845 zfs: put configure checks in version order

Put the ZFS feature checks in release version order, so that it is
easier to track when they apply and when they can be removed in
the future.

Make the configure checks use decrypt=B_TRUE just to illustrate
more correct usage.

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I22053638d72b41b51b6f56dea5668e78535cab07
Reviewed-on: https://review.whamcloud.com/34000
Reviewed-by: Nathaniel Clark <nclark@whamcloud.com>
Tested-by: Jenkins
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>