[third_party/pigweed] Roll 3 commits

46a21c419e5561f bazel: No integration tests in wildcard build
83735047f7e90ed pw_transfer: Fix ConcurrentModificationException i
52fcc2ecdab0e05 pw_stream_uart_mcuxpresso: Make dma_stream Write o

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 04b802b31c9a0ca..46a21c419e5561f
Roller-URL: https://ci.chromium.org/b/8745946123283288369
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I755bbe334e2cbc7cf0fefb0e6daba53abc16c486
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/214212
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 04b802b..46a21c4 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 04b802b31c9a0cab2c6c7346d1887bdd30c8078c
+Subproject commit 46a21c419e5561f71c735ec4b956e1329198df17