Merge pull request #9605 from liewegas/wip-statfs

os: simplify store_statfs_t

Reviewed-by: Igor Fedotov <ifedotov@mirantis.com>

diff --cc src/common/config_opts.h
Simple merge

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

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

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

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

diff --cc src/test/objectstore/store_test.cc
Simple merge