Update DXC submodule after DEPS roll

No-Try: True

Change-Id: Iddbe1813989f572f991011f0307b2b0fd7512ecd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/235234
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
diff --git a/third_party/dxc b/third_party/dxc
index 85f3432..0ffd60a 160000
--- a/third_party/dxc
+++ b/third_party/dxc
@@ -1 +1 @@
-Subproject commit 85f34327588ded72e949ed438d85653576f144e4
+Subproject commit 0ffd60accba540b0127e727f68b61b8075d6130a