[third_party/pigweed] Roll 2 commits

4ab4b220f23f968 roll: sysroot
2de4acb67e7e38d roll: cmake

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 98a790ed35ba482..4ab4b220f23f968
Roller-URL: https://ci.chromium.org/b/8750101600228013329
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I90192c22dc7c935dc82a2eb126e8c0cd36326ba3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/205174
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.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 98a790e..4ab4b22 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 98a790ed35ba482bc475d48a3593a62cb13c2023
+Subproject commit 4ab4b220f23f96879a9c83b55f5570ab3af9a3af