support CONFIG_DRIVER_NL80211_SYNA for syna wifi

Bug: 226553677
Test: 1. build pass
      2. Manual - wifi can enable/scan/connect

Change-Id: I38e9dc9c37036283bdc35dfa18d2af25b029a451
diff --git a/src/drivers/driver_nl80211.h b/src/drivers/driver_nl80211.h
index dcf482a..8ad7184 100644
--- a/src/drivers/driver_nl80211.h
+++ b/src/drivers/driver_nl80211.h
@@ -228,9 +228,9 @@
 	 * (NL80211_CMD_VENDOR). 0 if no pending scan request.
 	 */
 	int last_scan_cmd;
-#ifdef CONFIG_DRIVER_NL80211_BRCM
+#if defined(CONFIG_DRIVER_NL80211_BRCM) || defined(CONFIG_DRIVER_NL80211_SYNA)
 	unsigned int vendor_set_pmk:1; /* for legacy set_pmk method before NL80211_CMD_SET_PMK */
-#endif /* CONFIG_DRIVER_NL80211_BRCM */
+#endif /* CONFIG_DRIVER_NL80211_BRCM || CONFIG_DRIVER_NL80211_SYNA */
 #ifdef CONFIG_DRIVER_NL80211_QCA
 	bool roam_indication_done;
 	u8 *pending_roam_data;