Roll SwiftShader from 16826bfa6f73 to 708ca9579181 (3 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/16826bfa6f73..708ca9579181

2022-08-11 capn@google.com Eliminate unscale constants
2022-08-11 nicolas.capens@gmail.com Make maskAny() SIMD width agnostic.
2022-08-11 capn@google.com Support constructing a SIMD constant from a lambda expression

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 cwallez@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: cwallez@google.com
Change-Id: Ic0ec1aaf226c0f9f092ec00648f863b12c4e0860
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98782
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -134,7 +134,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@16826bfa6f73e938d9f4e01c94af1f8d71028efc',
+    'url': '{swiftshader_git}/SwiftShader@708ca9579181a8096193f68ad6c412a5fd302d5b',
     'condition': 'dawn_standalone',
   },