[roll third_party/pigweed] SEED-0110: Memory Allocation Interfaces

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/168772

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: af237dbf10c3843..21eae82a9cbb993
Roller-URL: https://ci.chromium.org/b/8765429497893052385
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id58f8e4d80152f98409ef070e1ccf6ccb3dcf4fe
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/178866
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 af237db..21eae82 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit af237dbf10c3843a006c789a7c40ea250dab68fa
+Subproject commit 21eae82a9cbb993946d9f72873dde6a5b2ebd74d