RDKB-62740: Disable 320MHz for 11ax mode ion 6GHz (#83)

RDKB-62740: Disable 320MHz for 11ax mode ion 6GHz

Reason for change: 320MHz not supported for 11ax mode in 6GHz
Test Procedure: Build and verify in MSO page
Risks: Low
Priority: P1

Author: roushan-tel

source/Styles/xb6/jst/wireless_network_configuration_onewifi.jst

@@ -808,6 +808,13 @@ $(document).ready(function() {
 			$("#operation_mode1").prop("disabled", true);
 		}
 	}).trigger("change");
+    $("#wireless_mode3").change(function() {
+            if ("ax"==$("#wireless_mode3").val()) {
+                    $("#channel_bandwidth7").prop("disabled", true);
+            } else if("ax,be"==$("#wireless_mode3").val() || "be"==$("#wireless_mode3").val()) {
+                    $("#channel_bandwidth7").prop("disabled", false);
+            }
+    }).trigger("change");
     $("#channel_number").change(function() {
 		show_extch(document.getElementById("channel_number").value);
 	}).trigger("change");