roll: third_party/pigweed 2 commits

542cb9290ee366a bazel: Partial revert of http://pwrev.dev/226007
c605a3b205089cd pw_chrono_stl: Move system clock and timer into se

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 84803f3af2d56dc..542cb9290ee366a
Roller-URL: https://ci.chromium.org/b/8741312035361570417
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I7312078e122b454e472ac5bed3bf4e99fc6889e3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/226256
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 84803f3..542cb92 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 84803f3af2d56dc94596adbbfdcd35836ce46265
+Subproject commit 542cb9290ee366a8562a1fde94f537768e64b034