roll: third_party/pigweed 447364e..a615b8b (3 commits)

a615b8b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/219393 pw_bluetooth: Modernize APIs
5516467:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/248212 docs: Build SEED docs with Bazel
a7362ec:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/248027 pw_bluetooth: Add RFCOMM emboss definitions

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 447364e12c57a5..a615b8bf5234f4
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8731511891853236545
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I9e2f048a1b72c3993bbac8e0372942a85a6e46a4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/248253
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 447364e..a615b8b 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 447364e12c57a5651a98e93b4baddd6952631ef6
+Subproject commit a615b8bf5234f48b8a33e6c837aa7521fa80d92a