[roll third_party/pigweed] roll: gn

From: git_revision:bc5744174d9ea1c292f3f08cfb95fa97ea5c595e
To: git_revision:92e63272dc04ee7cc1eaae2633c25da06e4f9c03
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/182570
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4f55cd893c39b21..8b5d45a34aa2d4b
Roller-URL: https://ci.chromium.org/b/8763286406960278129
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia3faa63493c5936bb9eaf0621b6796e7817d4733
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/182610
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 4f55cd8..8b5d45a 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4f55cd893c39b218b8ad116143898b0d9210a964
+Subproject commit 8b5d45a34aa2d4b30a8624a6df946077c879b892