roll: third_party/pigweed df5369e..a5a1995 (11 commits)

a5a1995:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237092 targets: Remove implicit extern C
cc365b0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237227 roll: 310, 311
50af4ca:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237253 roll: ninja
198260e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237252 roll: host, aarch64-unknown-linux-gnu, x86_64-unknown-linux-gnu, aarch64-apple-darwin, x86_64-apple-darwin, thumbv7m-none-eabi
e31487f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/230893 pw_multibuf: Remove MultiBuf's Chunk iterator wrappers
6b20a02:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237133 bazel: Generate compile commands for Fuchsia
da9a7e7:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237095 pw_transfer: Fix offset receive transfer startup
2db0e0c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237046 docs: Update changelog
08c49a4:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/236793 bazel: Sort flags in bazelrc
130903f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/207550 pw_toolchain: Migrate host clang to rules_cc toolchains
0ffb69d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237112 pw_result: Add missing CTAD guide to pw::unexpected

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: df5369eda85375..a5a199593f1375
Roller-URL: https://ci.chromium.org/b/8736016720989386129
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: If9f26b5de25a5e43660f020f2319494042df8d23
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/237236
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index df5369e..a5a1995 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit df5369eda8537543da4a67c8dbf32711564d587c
+Subproject commit a5a199593f1375177d5805f882f303d4c8b8cea2