roll: third_party/pigweed 358d2b6..4a2ab50 (3 commits)

4a2ab50:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/273332 third_party/freertos: Silence new warning
351d6c1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/264642 pw_allocator: Restrict BlockAllocator's public interface
4a365f6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/252053 pw_malloc: Rename GetSystemAllocator to CreateSystemAllocator

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 358d2b6af37fc6..4a2ab500597e72
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8721111458243210897
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I0f5cba1e291a2b6d0704a03a070d6a977a8cf0ab
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/273472
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.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 358d2b6..4a2ab50 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 358d2b6af37fc692c540e3a97295100d694d6d21
+Subproject commit 4a2ab500597e72d1d87777be23a644b9b343a702