virtio-devices: seccomp: Add seccomp filters for mem thread

This patch enables the seccomp filters for the mem worker thread.

Partially fixes: #925

Signed-off-by: Bo Chen <chen.bo@intel.com>

vmm/src/device_manager.rs

@@ -2417,6 +2417,7 @@ impl DeviceManager {
                     resize
                         .try_clone()
                         .map_err(DeviceManagerError::TryCloneVirtioMemResize)?,
+                    self.seccomp_action.clone(),
                 )
                 .map_err(DeviceManagerError::CreateVirtioMem)?,
             ));