roll: third_party/pigweed c59d362..abbf5c2 (2 commits)

abbf5c2:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/441572 pw_bluetooth_sapphire: Fix LE CoC RX engine spec validation and credit enforcement
4a54257:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/433960 pw_bluetooth_proxy: Serialize off-dispatcher callers in async mode

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: c59d362bf0d288..abbf5c2db09d5e
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8675383164039720817
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I966b99c07e83fdf6006ccec2d2f04d9f415e89d5
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/441438

third_party/pigweed

diff --git a/third_party/pigweed b/third_party/pigweed
index c59d362..abbf5c2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit c59d362bf0d288d63bbe7198832e45ff1ad108a4
+Subproject commit abbf5c2db09d5ea26de64e75876973c2c52be8bf