mwifiex: add support for WPS2.0

This patches enables setting association request and probe request
IE for station interface. WPS exchange between WPS2.0 AP and mwifiex
STA Enrollee/External Registrar completes successfully.

Tested with wpa_supplicant 1.0 and 2.0 devel.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index e601c46..5081da3 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -407,6 +407,8 @@
 	struct host_cmd_ds_802_11_key_material aes_key;
 	u8 wapi_ie[256];
 	u8 wapi_ie_len;
+	u8 *wps_ie;
+	u8 wps_ie_len;
 	u8 wmm_required;
 	u8 wmm_enabled;
 	u8 wmm_qosinfo;