[roll third_party/pigweed] pw_trace: Extend CMake support

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/79963

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4bda7fcb9ec269d..a2af8fc321c162c
Roller-URL: https://ci.chromium.org/b/8824463069599219937
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8824463069599219937
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I282de910df0763d794a4d57093fff7d70285da24
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/79893
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 4bda7fc..a2af8fc 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4bda7fcb9ec269d9e300f90da804f44bb07428c1
+Subproject commit a2af8fc321c162cebba37bd011357b813a6d423e