roll: third_party/pigweed: bazel: Re-enable platform-based flags

Original-Bug: b/301334234
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/234135

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 877c8f486a81493..54679d205e48883
Roller-URL: https://ci.chromium.org/b/8737501434437643745
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I9f1b07d206fb29e90ce6725cd2de4bdc8413877d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/234374
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 877c8f4..54679d2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 877c8f486a81493b97251b15ae2723143f644513
+Subproject commit 54679d205e4888302ab24882e6fb64bf8ba964c6