WPA: Extend the wpa_pmk_to_ptk() function to also derive KDK

Extend the wpa_pmk_to_ptk() to also derive Key Derivation
Key (KDK), which can later be used for secure LTF measurements.

Update the wpa_supplicant and hostapd configuration and the
corresponding WPA and WPA Auth state machine, to allow enabling of KDK
derivation. For now, use a testing parameter to control whether KDK is
derived.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>

src/ap/wpa_auth_glue.c

@@ -208,6 +208,11 @@ static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
 #ifdef CONFIG_DPP2
 	wconf->dpp_pfs = conf->dpp_pfs;
 #endif /* CONFIG_DPP2 */
+#ifdef CONFIG_PASN
+#ifdef CONFIG_TESTING_OPTIONS
+	wconf->kdk = conf->force_kdk_derivation;
+#endif /* CONFIG_TESTING_OPTIONS */
+#endif /* CONFIG_PASN */
 }