[roll third_party/pigweed] roll: gn

From: git_revision:00b741b1568d56cf4e117dcb9f70cd42653b4c78
To: git_revision:cc28efe62ef0c2fb32455f414a29c4a55bb7fbc4

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/110890
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed.google.com.iam.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 40b2c7586e278fd..0550eab2432d71f
Roller-URL: https://ci.chromium.org/b/8802650198279792209
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I85957eb75dd57de21dbd90ae7f64872b0f72c90a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/110910
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 40b2c75..0550eab 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 40b2c7586e278fd077593e4976f4612d7954ad2e
+Subproject commit 0550eab2432d71f39d18d0c323c741ad608943da