Provide information about the encryption status of received EAPOL frames

This information was already available from the nl80211 control port RX
path, but it was not provided to upper layers within wpa_supplicant and
hostapd. It can be helpful, so parse the information from the driver
event.

Signed-off-by: Jouni Malinen <j@w1.fi>

src/ap/sta_info.h

@@ -65,6 +65,7 @@ struct mbo_non_pref_chan_info {
 struct pending_eapol_rx {
 	struct wpabuf *buf;
 	struct os_reltime rx_time;
+	enum frame_encryption encrypted;
 };
 
 enum pasn_fils_state {