roll: third_party/pigweed 70d1b3b..3c94819 (3 commits)

3c94819:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/311319 docs: Refactor the automated analysis docs
989a628:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/312652 pw_build_android: Update pw_build_android docs with proper target name
78f43df:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/312672 pw_bytes: Rename uint variable to avoid potential conflicts

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 70d1b3b618ead7..3c948197fc7beb
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8706717725330058481
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I08b43a51a463523b78a6b820f7839aed9ca961ee
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/312712
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: 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 70d1b3b..3c94819 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 70d1b3b618ead7b44859bc59a35393ad256548f5
+Subproject commit 3c948197fc7bebd6d231ab9272bd9db93e71acfa