FILS: Fix ifdef for PTK derivation with SHA384-based AKM

sha384_prf() is used both with Suite B and FILS, so add CONFIG_FILS as
another alternative to building in this functionality.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

src/common/wpa_common.c

@@ -194,12 +194,12 @@ int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
 	ptk->tk_len = wpa_cipher_key_len(cipher);
 	ptk_len = ptk->kck_len + ptk->kek_len + ptk->tk_len;
 
-#ifdef CONFIG_SUITEB192
+#if defined(CONFIG_SUITEB192) || defined(CONFIG_FILS)
 	if (wpa_key_mgmt_sha384(akmp))
 		sha384_prf(pmk, pmk_len, label, data, sizeof(data),
 			   tmp, ptk_len);
 	else
-#endif /* CONFIG_SUITEB192 */
+#endif /* CONFIG_SUITEB192 || CONFIG_FILS */
 #ifdef CONFIG_IEEE80211W
 	if (wpa_key_mgmt_sha256(akmp))
 		sha256_prf(pmk, pmk_len, label, data, sizeof(data),