lab config: add smart_usbhub label

BUG=b:154958447,b:153029288
TEST=./generate.sh

Change-Id: Ibb983a552614ab1e9e13280f8e65101bd5dab226
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2189556
Tested-by: Garry Wang <xianuowang@chromium.org>
Reviewed-by: Xixuan Wu <xixuan@chromium.org>
Commit-Queue: Garry Wang <xianuowang@chromium.org>
2 files changed