roll: third_party/pigweed eacae21..1621a81 (2 commits)

1621a81:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/312893 pw_i2c_mcuxpresso: Fix compilation errors
cfeded5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/313573 pw_build: Add missing dependency

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: eacae21fe4787b..1621a81cfbd0e1
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8706417593025557441
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I58c9e5311c456649afb623bd6abcb5a121b9ee00
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/313421
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 eacae21..1621a81 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit eacae21fe4787ba6e180fea28699c45e30a26dcb
+Subproject commit 1621a81cfbd0e108ec21880f68c808d945d6d7ed