EX-8353 csdc: rename "cp_comp_*" to "cp_compr_*"

EX-8353 csdc: rename "cp_comp_*" to "cp_compr_*"

This patch renames "cp_comp_type", "cp_comp_level",
and "cp_chunk_log_bits" to use "compr" in the name
to be consistent with other variable names.

Test-Parameters: trivial

Change-Id: I428ff3a789b33da02832dee02f316b02d97137e2
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/52761
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>