Message: MOSDOpReply construction is cpu optimized
constructor initialization list is modified to initialize some
attributes with copy constructor instead of assignment operator in the
constructor body.

Signed-off-by: Somnath Roy <somnath.roy@sandisk.com>
Merge branch 'wip-sd-sharded-tp' of https://github.com/somnathr/ceph into wip-sd-sharded-tp