Roll SwiftShader from f6bdbed95b37 to 9b1a72a8d226 (3 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/f6bdbed95b37..9b1a72a8d226

2022-01-18 capn@google.com Implement VK_GOOGLE_user_type
2022-01-18 capn@google.com Expose VK_GOOGLE_hlsl_functionality1
2022-01-18 capn@google.com Expose VK_GOOGLE_decorate_string

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: Id60a2050f0788c45c77bb804f7684dc4df29aaa6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/77000
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -133,7 +133,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@f6bdbed95b3703d782c2a2a537092afb39455442',
+    'url': '{swiftshader_git}/SwiftShader@9b1a72a8d2266960a0f036a39c644314c52877d3',
     'condition': 'dawn_standalone',
   },