sys/linux: fix error defined attributes

[f0rm2l1n]

Definitions for attribute NBD_ATTR_SOCKETS, NL80211_ATTR_BSS_SELECT, NL80211_ATTR_PEER_MEASUREMENTS, and NL80211_ATTR_SCHED_SCAN_MATCH have some errors.

For example, the current definition of NBD_ATTR_SOCKETS is like

NBD_ATTR_SOCKETS  nlnest[NBD_ATTR_SOCKETS, array[nlattr[NBD_SOCK_FD, sock_nbd_client]]]

However, according to the actual parsing code:

nla_for_each_nested(attr, info->attrs[NBD_ATTR_SOCKETS],
		    rem) {
	struct nlattr *socks[NBD_SOCK_MAX+1];

	if (nla_type(attr) != NBD_SOCK_ITEM) {
		pr_err("socks must be embedded in a SOCK_ITEM attr\n");
		ret = -EINVAL;
		goto out;
	}
	ret = nla_parse_nested_deprecated(socks, NBD_SOCK_MAX,
					  attr,
					  nbd_sock_policy,
					  info->extack);

The attribute NBD_ATTR_SOCKETS actually encloses stream of NBD_SOCK_ITEM
attribute first, then to the nested nbd_sock_policy attribute.

Fix them carefully, Check related parse functions: nbd_genl_reconfigure, parse_bss_select, nl80211_pmsr_start, and nl80211_parse_sched_scan for details.

[a-nogikh]

Thanks!