libceph: sync osd op definitions in rados.h

Bring in missing osd ops and strings, use macros to eliminate multiple
points of maintenance.

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
libceph: separate multiple ops with commas in debugfs output

For requests with multiple ops, separate ops with commas instead of \t,
which is a field separator here.

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>