[roll third_party/pigweed] roll: gn

From: git_revision:281ba2c91861b10fec7407c4b6172ec3d4661243
To: git_revision:f1b1412521b41e47118b29863224171e434a27a2

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/77600
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed.google.com.iam.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: c67146e728a26c1..a25da94a79d1e58
Roller-URL: https://ci.chromium.org/b/8825481990653367713
Cq-Cl-Tag: roller-builder:pigweed-sample-project-roller
Cq-Cl-Tag: roller-bid:8825481990653367713
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I2879c58b4bcf06dd05ea82e21a189e5aef3746e1
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/sample_project/+/77601
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index c67146e..a25da94 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit c67146e728a26c15a2935f6783c8658e972aa207
+Subproject commit a25da94a79d1e58543f9eb25f1e5a133b2d3b53a