[third_party/pigweed] Roll 3 commits

4f049a2e95df9ca SEED-0126: Claim SEED number
035f292d35a6918 docs: Organize the documentation style guides
2262ec0a0be4690 pw_allocator: Remove Layout from Deallocate and Re

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: f6d9544b2895948..4f049a2e95df9ca
Roller-URL: https://ci.chromium.org/b/8751805134459216417
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Icf3d052cc302015c3570c6c2040e23648128da70
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/201471
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index f6d9544..4f049a2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit f6d9544b2895948992d0a9213941858db14d5e4b
+Subproject commit 4f049a2e95df9caaad1cf37b4e8104a3f79fc81c