[roll third_party/pigweed] pw_toolchain: Clarify docs for static analysis

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/126688

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 37b4dc8dbdd018e..36e53251e73117a
Roller-URL: https://ci.chromium.org/b/8791042278619860433
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I39091896b3c8a3e2f8ef5be0f1418d080675de7d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/126871
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 37b4dc8..36e5325 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 37b4dc8dbdd018e01b7731042fed039563cb7737
+Subproject commit 36e53251e73117a3b5e255bc9d91006e9f5db530