roll: pigweed pw_toolchain: Split out build-system specific docs

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/238816
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: bf7078a044353df9683ecb65561a0edca45a4f95

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 06f958a5ab8a2c..bf7078a044353d
Roller-URL: https://ci.chromium.org/b/8735331648044824161
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I011db854bbfef83cb56b829a94e24f158c1556ff
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/238878
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/MODULE.bazel b/MODULE.bazel
index 7c1b3e6..8dc1a8a 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -49,8 +49,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-09-30.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8735333547895060609.
-    commit = "06f958a5ab8a2c9d30ac07fabdf28c2ecff147a6",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8735331648044824161.
+    commit = "bf7078a044353df9683ecb65561a0edca45a4f95",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )
 
@@ -58,8 +58,8 @@
     module_name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-09-30.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8735333547895060609.
-    commit = "06f958a5ab8a2c9d30ac07fabdf28c2ecff147a6",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8735331648044824161.
+    commit = "bf7078a044353df9683ecb65561a0edca45a4f95",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )