Merge pull request #54930 from rzarzynski/wip-osd-ec-rework

osd: rework EC for the sake of integration with crimson

diff --cc src/crimson/osd/osd_operations/scrub_events.cc
Simple merge

diff --cc src/crimson/osd/pg_backend.h
Simple merge

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

diff --cc src/crimson/osd/recovery_backend.h
Simple merge

diff --cc src/mon/OSDMonitor.cc
Simple merge

diff --cc src/osd/PrimaryLogPG.cc
Simple merge

diff --cc src/osd/osd_types.cc
Simple merge

diff --cc src/osd/osd_types.h
Simple merge

diff --cc src/osd/osd_types_fmt.h
Simple merge

diff --cc src/osd/scrubber/pg_scrubber.cc
Simple merge