[third_party/pigweed] Roll 2 commits

eed9f3c4cb733f7 pw_digital_io_linux: Add test_utils.h for ASSERT_O
56f740f4aa97088 pw_digital_io_linux: Minor updates to OwnedFd

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4d868e624a68d16..eed9f3c4cb733f7
Roller-URL: https://ci.chromium.org/b/8748281263775801841
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I410be583d027df9a608eab2ae6e2eabcb8a30190
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/209542
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 4d868e6..eed9f3c 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4d868e624a68d16d65b623bc53b4c802277b26fd
+Subproject commit eed9f3c4cb733f7337875a5aec6e4f997285093c