mount: Move adding cr-time binfmt_misc to collect_mnt_namespaces()
mount: Move adding cr-time binfmt_misc to collect_mnt_namespaces()

Binfmt_misc may not exist on NS_ROOT, and exist on NS_OTHER that time.
So, add binfmt_misc only if no one mnt_ns has it.

Signed-off-by: Kirill Tkhai <e5b39230c99b4d3ebd6aa54f6d823f95134bc39d@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

eabatalov/criu,eabatalov/criu,eabatalov/criu,eabatalov/criu,eabatalov/criu,eabatalov/criu