mwifiex: remove unnecessary enum MWIFIEX_802_11_WEP_STATUS

Instead of defining an 'enum', we can simply use 'u8' flag for WEP
status. Rename 'wep_status' to 'wep_enabled' to match with
'wpa_enabled' and 'wpa2_enabled'.

Signed-off-by: Amitkumar Karwar <akarwar@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 52810b1..4c86217 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -217,7 +217,7 @@
 	u8 wpa2_enabled;
 	u8 wapi_enabled;
 	u8 wapi_key_on;
-	enum MWIFIEX_802_11_WEP_STATUS wep_status;
+	u8 wep_enabled;
 	u32 authentication_mode;
 	u32 encryption_mode;
 };