Add glslangValidator module

The version in the flatpak runtime doesn't recognize `--quiet`

.ci/scripts/linux-flatpak/generate-data.sh

@@ -242,6 +242,22 @@ cat > /tmp/org.yuzu.$REPO_NAME.json <<EOF
                 }
             ]
         },
+        {
+            "name": "glslang",
+            "buildsystem": "cmake-ninja",
+            "builddir": true,
+            "config-opts": [
+                "-DCMAKE_BUILD_TYPE=Release",
+                "-DENABLE_SPVREMAPPER=OFF",
+                "-DENABLE_GLSLANG_JS=OFF"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/KhronosGroup/glslang.git"
+                }
+            ]
+        },
         {
             "name": "yuzu",
             "buildsystem": "cmake-ninja",