btrfs: skip tests that exercise compression property when using nodatasum

btrfs: skip tests that exercise compression property when using nodatasum

A couple tests exercise the compression property and that fails when an
inode has the nodatasum flag set. So skip the tests when running under the
nodatasum mount option.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>