pw_presubmit: Add msan to OTHER_CHECKS

Bug: b/234876100
Change-Id: If4ac6542acfdbe678b7909b312e8652c0f380ab4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/168325
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
Reviewed-by: Armando Montanez <amontanez@google.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>
diff --git a/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py b/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py
index cec6eec..282e551 100755
--- a/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py
+++ b/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py
@@ -1139,6 +1139,8 @@
     cmake_clang,
     cmake_gcc,
     coverage,
+    # TODO(b/234876100): Remove once msan is added to all_sanitizers().
+    cpp_checks.msan,
     docs_build,
     gitmodules.create(gitmodules.Config(allow_submodules=False)),
     gn_clang_build,