[roll third_party/pigweed] pw_thread: Fix pw_thread_zephyr compilability

It was broken by https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/205760.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/206970
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 2d65e87e6086474..736f7179de8ac99
Roller-URL: https://ci.chromium.org/b/8749482333327638017
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I1202d313dc2f20ddde1e002e4c4f9a1f299ad00c
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/206880
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 2d65e87..736f717 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 2d65e87e608647405788400aad243b94010cf132
+Subproject commit 736f7179de8ac9934effa48bb2bcaa9d63b01a23