RADOS: fix write op hangs

RADOS: fix write op hangs

if primary OSD handle a write op and do_osd_ops return errro code,
record_write_error will try to record it into pglog and send log message
to replica.
but if replica OSD crash right now, the primary OSD will call
on_change to free all repop, and do_update_log_missing_reply will not
be called, so the write op will lost and hangs.

this patch fix it.

Signed-off-by: Yunchuan Wen <yunchuan.wen@kylin-cloud.com>