[FIXBUG]fix wifi set channel api

Change-Id: Id5a0a73acc613a0e7ba98cd74e94dc2c015d708c
diff --git a/lib/liblynq-wifi6/libwifi6.c b/lib/liblynq-wifi6/libwifi6.c
index fad739f..d3a81ef 100755
--- a/lib/liblynq-wifi6/libwifi6.c
+++ b/lib/liblynq-wifi6/libwifi6.c
@@ -342,20 +342,22 @@
 {
 	FILE *fp;
 	int ret;
+	char lynq_cmd_ret[MAX_RET]="";
+	char lynq_cmd_channel[MAX_CMD]="";
+
 	if(idx<0||idx>9){
 		return -1;
 		}
-	char lynq_cmd_ret[MAX_RET]="";
-	char lynq_cmd_channel[MAX_CMD]="";
-	sprintf(lynq_cmd_channel,"/data/wl chanspec %d\n",channel);
-	system("/data/wl down");
+
+	sprintf(lynq_cmd_channel,"wl chanspec %d\n",channel);
+	system("wl down");
 
 	fp=popen(lynq_cmd_channel,"r");
 	if((fgets(lynq_cmd_ret,sizeof(lynq_cmd_ret),fp))!=NULL){
 		if(strncmp(lynq_cmd_ret,g_lynq_wifi_ok,2) != 0){
 			PRINT_AND_RETURN_VALUE("set channel error",-1);
 			}
-		system("/data/wl up");
+		system("wl up");
 		}
 	
 	return 0;