[roll third_party/pigweed] pw_thread_threadx: Enable pw::thread::Thread for ThreadX

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/40381

third_party/pigweed Rolled-Commits: 5a0450d263b7de5..f4da489b23c0396
Roller-URL: https://ci.chromium.org/b/8850112474543345504
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8850112474543345504
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I01cdae19faac36993f234cef0e9adfd506c72752
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/40644
Reviewed-by: 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 5a0450d..f4da489 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 5a0450d263b7de5e593ed97d4d902b9719977421
+Subproject commit f4da489b23c03963af9c82f631674d76f55065b3