roll: third_party/pigweed 096dff1..4acb139 (2 commits)

4acb139:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/475245 pw_stream_uart_mcuxpresso: Bypass USART_WriteBlocking()
fd7de1c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/475125 docs: Update search index filters

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 096dff1b26750e..4acb1397b055ac
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8670902412153670465
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Icc4f5ca76ae550825512e8a952b73a3cdfcdc853
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/475365

third_party/pigweed

diff --git a/third_party/pigweed b/third_party/pigweed
index 096dff1..4acb139 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 096dff1b26750e4455ec15783ae76be267ec3012
+Subproject commit 4acb1397b055ac6b596514af24623a28527b3f62