[BugFix][API-1392]run wl down/up when change 5g ap turn to 2.4G in set frequency API

Affected branch:MR3.0-xx && GSW3.0

Affected module:wifi

Is it addected on both ZXIC and MTK: only MTK

Self-test: Yes

Doc Update: No

Change-Id: Ide2a42af27207e0f16c3e71bd2a469356d7e8440
diff --git a/lib/liblynq-wifi6/libwifi6.c b/lib/liblynq-wifi6/libwifi6.c
index 221170c..0a5a4e3 100755
--- a/lib/liblynq-wifi6/libwifi6.c
+++ b/lib/liblynq-wifi6/libwifi6.c
@@ -2246,6 +2246,10 @@
     DO_OK_FAIL_REQUEST(lynq_wifi_frequency_cmd);
     DO_OK_FAIL_REQUEST(lynq_cmd_mode);
     DO_OK_FAIL_REQUEST(cmd_save_config);
+//@ tmp do down/up to fix 5G AP turn to 2.4G cannot be conenct
+    system("wl down");
+    system("wl up");
+    RLOGD("[%s] -- run cmd down/up --%d",__func__,__LINE__);
 
     return 0;
 }