Modified to MutableByteSpan

Author: hyunuktak

src/platform/Tizen/ConnectivityManagerImpl.cpp

@@ -259,7 +259,13 @@ CHIP_ERROR ConnectivityManagerImpl::GetWiFiBssId(ByteSpan & value)
     CHIP_ERROR err = Internal::WiFiMgr().GetBssId(bssId);
     ReturnErrorOnFailure(err);
 
-    value = ByteSpan(bssId, 6);
+    MutableByteSpan mutableByteSpan = MutableByteSpan(bssId, 6);
+    err = CopySpanToMutableSpan(value, mutableByteSpan);
+    if (err != CHIP_NO_ERROR)
+    {
+        ChipLogProgress(DeviceLayer, "Failed to copy span data");
+        return err;
+    }
 
     return CHIP_NO_ERROR;
 }