Roll SwiftShader from c70b46423fc4 to 67f520305136 (2 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/c70b46423fc4..67f520305136

2022-12-16 msisov@igalia.com fixup! remove use_system_libwayland
2022-12-15 msisov@igalia.com remove use_system_libwayland

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-dawn-autoroll
Please CC bclayton@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in SwiftShader: https://bugs.chromium.org/p/swiftshader/issues/entry
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: None
Tbr: bclayton@google.com
Change-Id: I9586755228f422238a11ad774d8e7700dd3ca142
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/114727
Kokoro: Kokoro <noreply+kokoro@google.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -137,7 +137,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@c70b46423fc435f9b2d0c7c8e7302331320e54ab',
+    'url': '{swiftshader_git}/SwiftShader@67f52030513677d41d3aaa8822d420f4e179b4a0',
     'condition': 'dawn_standalone',
   },