[third_party/pigweed] Roll 7 commits

8fefe0c2a5a34c8 roll: gn
f8ccffa43290479 [fuchsia_infra] Roll 15 commits
253204ef5bcda85 roll: cmake
33da8baecc1cd8d roll: bazel
eed9f3c4cb733f7 pw_digital_io_linux: Add test_utils.h for ASSERT_O
56f740f4aa97088 pw_digital_io_linux: Minor updates to OwnedFd
4d868e624a68d16 pw_log: Make TODO actionable

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 47018e2757e4c2c..8fefe0c2a5a34c8
Roller-URL: https://ci.chromium.org/b/8748064543856257329
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I204c52ad0354a60de6f76379a8119fe2881dc460
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/209693
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: 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 47018e2..8fefe0c 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 47018e2757e4c2c6d21c371f074bd862897b8843
+Subproject commit 8fefe0c2a5a34c83f8095eddf30d36bc4cc01852