DEPS: Update DXC to patched branch

Bug: chromium:342545100
Change-Id: I59149f3e1af146238efd6480c371f3dd2f4c4ce2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/194997
Reviewed-by: dan sinclair <dsinclair@google.com>

DEPS

diff --git a/DEPS b/DEPS
index 96072ef..4581319 100644
--- a/DEPS
+++ b/DEPS
@@ -287,7 +287,7 @@
   },
 
   'third_party/dxc': {
-    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@8f07d39227f6181d42fa8d42bc9c247c048bbd49',
+    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@b3c64851765c411b7147ac0269df2a2ce23d6f89',
   },
 
   'third_party/dxheaders': {

third_party/dxc

diff --git a/third_party/dxc b/third_party/dxc
index 8f07d39..b3c6485 160000
--- a/third_party/dxc
+++ b/third_party/dxc
@@ -1 +1 @@
-Subproject commit 8f07d39227f6181d42fa8d42bc9c247c048bbd49
+Subproject commit b3c64851765c411b7147ac0269df2a2ce23d6f89