Roll SwiftShader from 3fb7084b02d7 to ab4bf6ad00d4 (2 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/3fb7084b02d7..ab4bf6ad00d4

2022-08-17 nicolas.capens@gmail.com Ignore VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR
2022-08-17 swiftshader.regress@gmail.com Regres: Update test lists @ a6c3e363

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 alanbaker@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: alanbaker@google.com
Change-Id: I32d621c2059a103cc528ee091b799aa12c30d832
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99521
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -134,7 +134,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@3fb7084b02d7be6955994a68db05b2fa90407bff',
+    'url': '{swiftshader_git}/SwiftShader@ab4bf6ad00d4d1edcc6bb3487139e91f0d379fbb',
     'condition': 'dawn_standalone',
   },