EX-6269 csdc: tune allowed compression type on server

EX-6269 csdc: tune allowed compression type on server

Use lctl get_param {mdt|obdfiler}.*.compress_types to list supported
compression types on server.

Use lctl set_param {mdt|obdfilter}.*.compress_types="+gzip-lzo" to
add gzip to and delete lzo from existing compression types on server.

Server will negotiate supported compression types with client in
ocd_compress_types and client import stats could show the negotiated
supported compression types in "lctl get_param {mdc|odc}.*.import"
connect_data section:

import:
  ....
  connect_data:
     ....
     compress_types: [ fast,best,gzip,lz4fast,lz4hc,lzo ]

The OST support for the connect flags is enabled in this patch, but
MDT enabling is pending unaligned compression support for DoM files.

Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: I18943352e25ed9d5fe82442df9f00a7ef388f242
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/52307
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>