Merge branch 'netlink-specs-mptcp-fixes-for-some-descriptions'

Matthieu Baerts says:

====================
netlink: specs: mptcp: fixes for some descriptions

When looking at the MPTCP PM Netlink specs rendered version [1], a few
small issues have been found with the descriptions, and fixed here:

- Patch 1: add a missing attribute for two events. For >= v5.19.

- Patch 2: clearly mention the attributes. For >= v6.7.

- Patch 3: fix missing descriptions and replace a wrong one. For >= v6.7.

Link: https://docs.kernel.org/networking/netlink_spec/mptcp_pm.html
v1: https://lore.kernel.org/20241219-net-mptcp-netlink-specs-pm-doc-fixes-v1-0-825d3b45f27b@kernel.org
====================

Link: https://patch.msgid.link/20241221-net-mptcp-netlink-specs-pm-doc-fixes-v2-0-e54f2db3f844@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>