FILS: Check kde more consistently to avoid static analyzer warnings

For FILS, __wpa_send_eapol() is called only with the kde != NULL, but a
static analyzer might not understand that. Add an explicit check kde !=
NULL similarly to the other cases going through the kde parameter to
silence such bogus warnings.

Signed-off-by: Jeffin Mammen <jmammen@codeaurora.org>

src/ap/wpa_auth.c

@@ -1492,7 +1492,7 @@ void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
 		os_memcpy(key_data, kde, kde_len);
 		WPA_PUT_BE16(key_mic + mic_len, kde_len);
 #ifdef CONFIG_FILS
-	} else if (!mic_len) {
+	} else if (!mic_len && kde) {
 		const u8 *aad[1];
 		size_t aad_len[1];