roll: third_party/pigweed 7559f62..b53afe1 (3 commits)

b53afe1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319822 pw_kernel: Remove debug_add and debug_noop syscalls
7c6aa2c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/315672 pw_kernel: Add IPC channels
bf773c2:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320936 pw_ide: Remove unused execution_root

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 7559f62b892b79..b53afe19e1ddd6
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8703976502504357457
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I3aca6b1016c6f69ba96741748be6123c63c8fc4d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/321267
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: 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 7559f62..b53afe1 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 7559f62b892b7945209dfbc3ba98d11a191c3e45
+Subproject commit b53afe19e1ddd690fb96596125eb61d467ba365a