Merge pull request #30964 from markhpc/wip-bs-cache-trim-pinned

os/bluestore: Keep separate onode cache pinned list.

diff --cc src/common/options.cc
Simple merge

diff --cc src/os/bluestore/BlueStore.cc
Simple merge

diff --cc src/os/bluestore/BlueStore.h
Simple merge

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

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