zdtm/ipc_namespace: add msg_default msgsize_default
zdtm/ipc_namespace: add msg_default msgsize_default

and move fs.mqueue.xxx from get_shared_memory_info to get_messages_info

Signed-off-by: Pavel Tikhomirov <3e8c75167f9f00ca74287a4609f1507a2696e07e@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

eabatalov/criu,KKoukiou/criu-remote,eabatalov/criu,KKoukiou/criu-remote,KKoukiou/criu-remote,eabatalov/criu,eabatalov/criu,KKoukiou/criu-remote,eabatalov/criu,KKoukiou/criu-remote,eabatalov/criu,KKoukiou/criu-remote