BACKPORT: FROMGIT: wifi: nl80211: update add/remove link command

For now, we only expect to add links on AP interfaces, we
should not be able to remove links on client interfaces
even if they have valid links due to making a connection.

Also add a note that we should clean up a link when we
remove it, we'll need to address that later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Bug: 233387627
Change-Id: I949389e58958d6d79d25d473c00ee1d8d6a73a28
(cherry picked from commit 945b73e8b8069bbefcb07f4ce2a1c1793db1c058
 https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git

 mld)
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>