Merge pull request #24141 from liu-chunmei/ceph_seastar_perfcounter

common,crimson: port perfcounters to seastar

Reviewed-by: Kefu Chai <kchai@redhat.com>

diff --cc src/common/CMakeLists.txt
Simple merge

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

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

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

diff --cc src/crimson/CMakeLists.txt
Simple merge

diff --cc src/mgr/MgrClient.cc
Simple merge

diff --cc src/test/perf_counters.cc
Simple merge