Merge pull request #21893 from cbodley/wip-rgw-req-state-time

rgw: use coarse_real_clock for req_state::time

Reviewed-by: Adam C. Emerson <aemerson@redhat.com>

diff --cc src/rgw/rgw_admin.cc
Simple merge

diff --cc src/rgw/rgw_common.h
Simple merge

diff --cc src/rgw/rgw_op.cc
Simple merge

diff --cc src/test/encoding/types.h
Simple merge