uhubctl: upgraded package to upstream 2.4.0

Upgraded sys-power/uhubctl to version 2.4.0 on amd64

BUG=b:166167413
TEST=sudo emerge uhubctl
     sudo uhubctl
// observe list of ports on system

Change-Id: I79e2636d7492a226577e21d10f6422d73a7c18f4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2853819
Tested-by: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
Commit-Queue: Ruben Rodriguez Buchillon <coconutruben@chromium.org>
4 files changed