roll: third_party/pigweed 78d34f8..bafd9d8 (5 commits)

bafd9d8:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/270094 pw_package: Add rust_crates package
55b0258:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/293479 pw_toolchain: Use -Os for rust dbg and fastbuilds
9abacee:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/293493 pw_kernel: Enable fat lto and change -Oz to -Os
00c7806:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/292933 pw_kernel: Add kernel_no_panics_test target
83785da:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/292265 docs: Update the overview

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 78d34f8d31eb8c..bafd9d897649e0
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8714149706723223969
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I56131bc5c3316b1854056b45c7ff153ee9f801cd
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/293732
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 78d34f8..bafd9d8 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 78d34f8d31eb8cf41a2f9c16a13cc84e6761fdbe
+Subproject commit bafd9d897649e0ec713137cee528f6a7c87c3496