build(deps): bump third_party/yosys from `ed46453` to `171577f` (#2352)

Bumps [third_party/yosys](https://github.com/YosysHQ/yosys) from `ed46453` to `171577f`.
- [Release notes](https://github.com/YosysHQ/yosys/releases)
- [Commits](https://github.com/YosysHQ/yosys/compare/ed46453cfc3032d28246e81d93bfb8a8c65f826e...171577f909cd0ecc33d879a8925d70f6c9ca8f1e)

---
updated-dependencies:
- dependency-name: third_party/yosys
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/third_party/yosys b/third_party/yosys
index ed46453..171577f 160000
--- a/third_party/yosys
+++ b/third_party/yosys
@@ -1 +1 @@
-Subproject commit ed46453cfc3032d28246e81d93bfb8a8c65f826e
+Subproject commit 171577f909cd0ecc33d879a8925d70f6c9ca8f1e