selinux/nlmsg: add RTM_GETNSID

This new command is missing.

Fixes: 9a9634545c70 ("netns: notify netns id events")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

security/selinux/nlmsgtab.c

@@ -74,6 +74,7 @@ static struct nlmsg_perm nlmsg_route_perms[] =
 	{ RTM_DELMDB,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE  },
 	{ RTM_GETMDB,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
 	{ RTM_NEWNSID,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELNSID,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
 	{ RTM_GETNSID,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
 };