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>
diff --git a/dev-util/glslang/Manifest b/dev-util/glslang/Manifest
index 897a8b4..9ba2d0b 100644
--- a/dev-util/glslang/Manifest
+++ b/dev-util/glslang/Manifest
@@ -1 +1 @@
-DIST glslang-11.2.0.tar.gz 3295235 BLAKE2B 42417f3be070a57f0c71f5a0c81ffcf4938044c74fd59435fad6889b74c077032fda18e73971db41b180341c1eb6bcdc24081d5ff57fb9baf36c32fbfac9e67a SHA512 0d6cd866c4e28069dbc2c5f0ceba2acab73356751499f8fe81177357c61b2bdae92d2502c47889687d57094dd9fd59b78a06234de1d9c4989a204f9ce3c73751
+DIST glslang-11.4.0.tar.gz 3342311 BLAKE2B 880f2c5bc2afe5c28b4c9246faed5a12492e24d1f3d75a0df036457ed7767541a18757d368e2298dd7e8e4f8ca9a2a168973274ea6364453130b2928bce4d991 SHA512 e507ff5420a192133dd25b3f1d18dfa4a20c7fff9908e58bad5a7ddf8119989977c2a180575cc24b3434cab4a7cc7559a3254676f6298c0fa3b82dc9e802e1f5
diff --git a/dev-util/glslang/OWNERS b/dev-util/glslang/OWNERS
index 8907698..99169b5 100644
--- a/dev-util/glslang/OWNERS
+++ b/dev-util/glslang/OWNERS
@@ -1,3 +1,4 @@
 chadversary@chromium.org
+msturner@google.com
 olv@google.com
 pwang@chromium.org
diff --git a/dev-util/glslang/glslang-11.2.0.ebuild b/dev-util/glslang/glslang-11.4.0.ebuild
similarity index 100%
rename from dev-util/glslang/glslang-11.2.0.ebuild
rename to dev-util/glslang/glslang-11.4.0.ebuild