Merge pull request #32934 from rzarzynski/wip-bl-32bytes

include, common: make ceph::bufferlist 32 bytes long on x86

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

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

diff --cc src/include/buffer.h
Simple merge

diff --cc src/msg/async/ProtocolV1.cc
Simple merge

diff --cc src/os/filestore/FileJournal.h
Simple merge

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