Roll SwiftShader from f43b9df4c8a9 to 70178a763bb9 (3 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/f43b9df4c8a9..70178a763bb9

2021-10-04 capn@google.com Refactor swapchain image creation
2021-10-04 capn@google.com Increase the maximum 1D, 2D, and Cube image dimension to 16384
2021-10-04 nicolascapens@google.com Kokoro: Disable gcp_ubuntu builds failing to update CMake

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-angle-autoroll
Please CC ynovikov@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 ANGLE: https://bugs.chromium.org/p/angleproject/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: ynovikov@google.com
Change-Id: Ie88ff43a25ecfa4d74d41c74c3f67fc7731095de
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3205630
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -491,7 +491,7 @@ deps = {
   },
 
   'third_party/SwiftShader': {
-    'url': '{swiftshader_git}/SwiftShader@f43b9df4c8a9959047e2e1d7e111554ab3f9a3bf',
+    'url': '{swiftshader_git}/SwiftShader@70178a763bb9ba9d32acd57d49dcf40f837c82a1',
     'condition': 'not build_with_chromium',
   },