libgusb: upgraded package to upstream

Upgraded dev-libs/libgusb to version 0.3.4 on amd64, arm

BUG=b:156874279
TEST=emerge-volteer libgusb fwupd
Check that fwupd builds and runs with libgusb 0.3.4.
$ fwupdtool --version
client version: 1.4.1
compile-time dependency versions
        gusb:   0.3.4

Cq-Depend: chromium:2233789
Change-Id: Ifd6b86b722d6c94d1d62784a21a18873a4c8bb31
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2206422
Tested-by: Benson Leung <bleung@google.com>
Commit-Queue: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Daniel Campello <campello@chromium.org>
Reviewed-by: Allen Webb <allenwebb@google.com>
Auto-Submit: Benson Leung <bleung@chromium.org>
5 files changed