msm: nl80211: Add WAPI support for cfg80211.

This provides WAPI support for cfg80211.

Change-Id: I6ec1f6804cd9017bd332b4dd5ab06f18b390e120
Signed-off-by: Deepthi Gowri <deepthi@codeaurora.org>
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 4d7b83f..c00a511 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -199,6 +199,10 @@
 		if (params->key_len != WLAN_KEY_LEN_AES_CMAC)
 			return -EINVAL;
 		break;
+	case WLAN_CIPHER_SUITE_SMS4:
+		if (params->key_len != WLAN_KEY_LEN_WAPI_SMS4)
+			return -EINVAL;
+		break;
 	default:
 		/*
 		 * We don't know anything about this algorithm,