[third_party/pigweed] Roll 5 commits

4d84714f44de7d6 pw_cpu_exception_cortex_m: Fix checks for ARMv8
bb558ed3c239189 rp2040: Raise minimal stack size to 1KB
dc5c87c532e5c75 pw_system: Simplify pw_system usage in Bazel
eeec5566194948d targets/rp2040: Refresh target docs
905d4268e336ff1 pw_clock_tree: Generic clock tree management

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: de0813bee2778fe..4d84714f44de7d6
Roller-URL: https://ci.chromium.org/b/8747370830667539105
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iaebecde72d16f6ef6d35770843c625ccd6c87c49
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/210632
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 de0813b..4d84714 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit de0813bee2778fe28f61a0ec3ff22ae2e44599dc
+Subproject commit 4d84714f44de7d6c6c94fcedbdb0818642d6a91d