EX-8038 csdc: store compression info in FID EA

EX-8038 csdc: store compression info in FID EA

Store compression information in OST-object's FID EA, and lfsck could
use it to recover the MDT-object layout EA from orphan OST-object(s).

2.15 Lustre may embed PFID and layout stripe info in LMA EA, this
patch would clear them from LMA EA and store them with compression
info directly into FID EA thereafter.

Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: Iacac04601b73f85d9bc057b8dd34a5004248dac4
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/53649
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>