roll: third_party/pigweed 61b5a37..9646081 (2 commits)

9646081:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/278532 pw_rpc: Update soong rules for pwpb & pwpb_rpc
abd0403:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/280116 roll: luci

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 61b5a37b576792..964608167ffcd6
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8718943047487099745
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I66c3ca45d293ce85260f19ebf230eaf4f5e844c5
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/280252
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 61b5a37..9646081 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 61b5a37b576792c263bf84ae0cb4283cd6a1bdf5
+Subproject commit 964608167ffcd644275d127e9b928639190970e3