[roll third_party/pigweed] pw_stream_uart_mcuxpresso: Add interrupt safe write-only uart stream

Suitable for use in interrupt or fault handlers, it uses the blocking
UART api which spins while tx fifo is drained.

Also tested to be able to take over a UART that was already
initialized elsewhere in the case of a fault handler.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/207414
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https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4d23123c37a3363..5f043974e7207fb
Roller-URL: https://ci.chromium.org/b/8749255716253641969
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ib37e68aaab708451181d198873570d5134d57dcc
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/207395
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
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 4d23123..5f04397 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4d23123c37a33638b2f1ce611423e74d385623ff
+Subproject commit 5f043974e7207fb8eed7d13c89654665437c6811