[roll third_party/pigweed] roll: gn

From: git_revision:4bd1a77e67958fb7f6739bd4542641646f264e5d
To: git_revision:1de45d1a11cc9f8cb5c75a031386151e1c384847

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/154556
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: d455bc136a13646..c31eb274ae3ffdb
Roller-URL: https://ci.chromium.org/b/8776016311722352481
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie8e2f51f1a226a6a7223fb8faa3ecf8cba29cece
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/154535
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index d455bc1..c31eb27 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit d455bc136a136463badb8206f42c68bd278031a6
+Subproject commit c31eb274ae3ffdbc065d7fe64bea52cbd381452a