nl80211: Extend NL80211_CMD_TDLS_OPER to support discovery

ML80211_ATTR_TDLS_OPERATION can now set to NL80211_TDLS_DISCOVERY_REQ to
allow the driver to request wpa_supplicant to initiate TDLS Discovery
Request.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
diff --git a/src/drivers/driver_nl80211_event.c b/src/drivers/driver_nl80211_event.c
index b59d139..87e412d 100644
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -1282,6 +1282,12 @@
 			   MACSTR, MAC2STR(data.tdls.peer));
 		data.tdls.oper = TDLS_REQUEST_TEARDOWN;
 		break;
+	case NL80211_TDLS_DISCOVERY_REQ:
+		wpa_printf(MSG_DEBUG,
+			   "nl80211: TDLS discovery request for peer " MACSTR,
+			   MAC2STR(data.tdls.peer));
+		data.tdls.oper = TDLS_REQUEST_DISCOVER;
+		break;
 	default:
 		wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
 			   "event");