roll: third_party/pigweed: pw_assert_trap: Add a new assert backend which traps on assert

This new module will call __builtin_trap() on assert in an
interrupt safe manner.

Original-Bug: https://pwbug.dev/351888988
Original-Fixes: https://pwbug.dev/351886597

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/220135
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https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 81aad1379cb7f23..fc32542d40ea2a3
Roller-URL: https://ci.chromium.org/b/8742239685558816481
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I52bdefaf29471c85bcd1b2fc9b2c364c175f5e33
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/223552
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
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diff --git a/third_party/pigweed b/third_party/pigweed
index 81aad13..fc32542 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 81aad1379cb7f230793d97aca25012476f07dde0
+Subproject commit fc32542d40ea2a31b70bb6b72d28a7fcec2c149f