mwifiex: remove redundant encryption_mode mapping

remove MWIFIEX_ENCRYPTION_MODE_ and use WLAN_CIPHER_SUITE_
macros directly

Signed-off-by: Yogesh Ashok Powar <yogeshp@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/init.c b/drivers/net/wireless/mwifiex/init.c
index 43ea87d..8189862 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -86,7 +86,7 @@
 
 	priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED;
 	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
-	priv->sec_info.encryption_mode = MWIFIEX_ENCRYPTION_MODE_NONE;
+	priv->sec_info.encryption_mode = 0;
 	for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++)
 		memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key));
 	priv->wep_key_curr_index = 0;