btrfs/333: skip the test when running with nodatacow or nodatasum

btrfs/333: skip the test when running with nodatacow or nodatasum

Encoded writes are reject for inodes with the NODATASUM flag, so we must skip
the test if running with either the nodatasum or nodatacow (which implies
nodatasum) mount options.

So skip the test when under nodatacow and nodatasum mount options.

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