roll: third_party/pigweed: bazel: Update cmsis_core checksum

STM changed their repo name. Unfortunately this affects the checksum of
the archive, because the top-level directory in the .tar.gz is the name
of the repo.

Original-Fixes: 365121598
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/234132

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: c1053db0462769f..2d7b15a9f319fff
Roller-URL: https://ci.chromium.org/b/8737513245889090033
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I65c41c9ddb2d225e10723f9587121daa6a1f43c8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/234373
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 c1053db..2d7b15a 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit c1053db0462769f382b50940b58d0d351f0f9402
+Subproject commit 2d7b15a9f319fffd436657ec82f290c648a0d9bf