mac80211_hwsim: Extended Key ID support

Allow Extended Key ID to be used with hwsim.

Hwsim can only communicate with other hwsim cards, allowing it to bypass
creation of A-MPDUs in the first place.

Mixing keyIDs in an A-MPDU is therefore impossible and can never cause
interoperability issues with other cards.
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
[reword comment slightly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/mac80211_hwsim.c

@@ -2799,6 +2799,12 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
 	ieee80211_hw_set(hw, SIGNAL_DBM);
 	ieee80211_hw_set(hw, SUPPORTS_PS);
 	ieee80211_hw_set(hw, TDLS_WIDER_BW);
+
+	/* We only have SW crypto and only implement the A-MPDU API
+	 * (but don't really build A-MPDUs) so can have extended key
+	 * support
+	 */
+	ieee80211_hw_set(hw, EXT_KEY_ID_NATIVE);
 	if (rctbl)
 		ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
 	ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);