Merge pull request #44333 from rzarzynski/wip-crimson-fix-recovery-discarding

crimson/osd: implement op discarding for pglog-based recovery.

Reviewed-by: Samuel Just <sjust@redhat.com>
Reviewed-by: Chunmei Liu <chunmei.liu@intel.com>

diff --cc src/crimson/osd/replicated_recovery_backend.cc
Simple merge