roll: third_party/pigweed roll: cmake

From version:3@3.31.7.chromium.8
To version:3@3.31.8.chromium.8

Roll-Count: 1
GitWatcher: ignore
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/298055
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Original-Revision: 7884658bd64a1700358e1f4ee1e92e29ac1eeb6a

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: fed9531388392d..7884658bd64a17
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8712059793880468657
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iaa7df14f1116424502c7a9b01d909597f6d57e82
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/298392
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index fed9531..7884658 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit fed9531388392d10b331044bf96730e3d015f531
+Subproject commit 7884658bd64a1700358e1f4ee1e92e29ac1eeb6a