UPSTREAM: wifi: cfg80211: add API to add/modify/remove a link station

Add an API for adding/modifying/removing a link of a station.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Bug: 248430009
Change-Id: I5418c5eb85f64852f2c9bf6794119ced21f23dd0
(cherry picked from commit 577e5b8c)
Signed-off-by: Kiran Kumar Lokere <quic_klokere@quicinc.com>
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>