dev-util/glslang: Uprev to 11.4.0

Required by uprev of vulkan-layers.

This is a copy of the upstream ebuild with the following changes:
  - KEYWORDS=*
  - Add python_36 to PYTHON_COMPAT.

BUG=b:195986385
TEST=emerge-$BOARD glslang

Change-Id: I9a002f6d97ca50af8e28338901724ec354f9dccd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3098400
Tested-by: Chad Versace <chadversary@chromium.org>
Auto-Submit: Chad Versace <chadversary@chromium.org>
Reviewed-by: Matt Turner <msturner@google.com>
Reviewed-by: Chia-I Wu <olv@google.com>
Reviewed-by: Po-Hsien Wang <pwang@chromium.org>
Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Commit-Queue: Chad Versace <chadversary@chromium.org>
3 files changed