Roll SwiftShader from 7089ef18891d to 561264b73b36 (7 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/7089ef18891d..561264b73b36

2022-03-04 capn@google.com Remove explicit broadcasts of constants in fragment operations
2022-03-03 capn@google.com Fix obtaining the RelaxedPrecision decoration from the result ID
2022-03-03 natsu@google.com Support VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16
2022-03-03 dvet@google.com Update googletest submodule to release-1.11.0
2022-03-03 capn@google.com Benchmark mediump GLSL.std.450 instructions
2022-03-03 capn@google.com Simplify obtaining SPIR-V decorations
2022-03-03 capn@google.com Remove duplicate transcendental functions

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 romanl@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: romanl@google.com
Change-Id: Ieca176e79636e225e2c6950ef7864ec093ca9411
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3499034
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -496,7 +496,7 @@ deps = {
   },
 
   'third_party/SwiftShader': {
-    'url': '{swiftshader_git}/SwiftShader@7089ef18891d212b674a56c5077e19c99c6ff586',
+    'url': '{swiftshader_git}/SwiftShader@561264b73b3658773c037fc2d4a392a7cec8137c',
     'condition': 'not build_with_chromium',
   },