Roll SwiftShader from d25df2a67cd2 to b8d7deae87a7 (2 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/d25df2a67cd2..b8d7deae87a7

2022-02-21 capn@google.com Eliminate initialization of fragment shader inputs
2022-02-21 capn@google.com Use legacy math precision for the Pipeline source set as well

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 abdolrashidi@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: abdolrashidi@google.com
Change-Id: I93b2acef9130aeacba167432cb9cc34f468e9046
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3479410
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index f1aca2b..49503d8 100644
--- a/DEPS
+++ b/DEPS
@@ -496,7 +496,7 @@
   },
 
   'third_party/SwiftShader': {
-    'url': '{swiftshader_git}/SwiftShader@d25df2a67cd2331e85015457e6291324d4214cdd',
+    'url': '{swiftshader_git}/SwiftShader@b8d7deae87a7baa74fc67afb4bce89edbcfa9e01',
     'condition': 'not build_with_chromium',
   },