wifi: mac80211: handle protected dual of public action

The code currently handles ECSA (extended channel switch
announcement) public action frames. Handle also their
protected dual, which actually is protected.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240612143037.db642feb8b2e.I184fa5c9bffb68099171701e403c2aa733f60fde@changeid


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