tint->dawn: Shuffle tint repo layout

BUG=tint:1418

Change-Id: Iee47f1846be63bbd829067b3d818d2603647d4e6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/80481
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>

DEPS

@@ -113,7 +113,7 @@ deps = {
 
   # WGSL support
   'third_party/tint': {
-    'url': '{dawn_git}/tint@38f1e9c75c5c9f73b02bb82ec1e2e9611a554f9a',
+    'url': '{dawn_git}/tint@aa58a6934c270446d7e6e0bef095241d3d772cbf',
   },
 
   # GLFW for tests and samples

src/dawn/native/BUILD.gn

@@ -163,7 +163,7 @@ source_set("sources") {
     "${dawn_root}/src/dawn/common",
     "${dawn_spirv_tools_dir}:spvtools_opt",
     "${dawn_spirv_tools_dir}:spvtools_val",
-    "${dawn_tint_dir}/src:libtint",
+    "${dawn_tint_dir}/src/tint:libtint",
   ]
   defines = []
   libs = []