[roll third_party/pigweed] pw_toolchain: Add module metadata

Original-Bug: 339741960
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/214351
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e80cd8431b9aac5..6b2fe95f4b7a70d
Roller-URL: https://ci.chromium.org/b/8745480821433651521
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: If3a7ac82e14f53ca52a24ef76217fce841bd6be1
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/215276
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index e80cd84..6b2fe95 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e80cd8431b9aac5a4dcc356632b98ace3f41ac21
+Subproject commit 6b2fe95f4b7a70dbab728dee745cec14f46652b1