winbindd: idmap_rid: don't rely on the static domain list

winbindd: idmap_rid: don't rely on the static domain list

The domain list in the idmap child is inherited from the parent winbindd
process and may not contain all domains in case enumerating trusted
domains didn't finish before the first winbind request that triggers the
idmap child fork comes along.

The previous commits added the domain SID as an additional argument to
the wbint_UnixIDs2Sids request, storing the domain SID in struct
idmap_domain.

Bug: https://bugzilla.samba.org/show_bug.cgi?id=13052

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>