[third_party/pigweed] Roll 4 commits

9818527a8610c7a pw_bluetooth_sapphire: Use hci_android.emb.h
1a7803b5be6ed6f third_party: Add missing libfit deps for Android
0b7dd705b9c1159 pw_bluetooth: Rename hci_vendor to hci_android (wi
ae704b9dd8618ac pw_bluetooth: Add Vendor BQR subevent prefix

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 7b7d2fd94a5d29c..9818527a8610c7a
Roller-URL: https://ci.chromium.org/b/8749013794451977153
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Idda16f954ab0752c788437bcf7ae088566df8ba7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/208018
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.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 7b7d2fd..9818527 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 7b7d2fd94a5d29c3e03389a4dccc58689e330a40
+Subproject commit 9818527a8610c7a67ee2670278f3f303094b3904