[roll third_party/pigweed] pw_tokenizer: Mark `pw_tokenizer_core` as `no_std`

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/183197

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 692407c186591b0..f25590ccd6f2053
Roller-URL: https://ci.chromium.org/b/8762524199251862337
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I7ff3084939c9dfec9110a73628141ec27cd2d9c0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/184092
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 692407c..f25590c 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 692407c186591b069683348f40845d595842521f
+Subproject commit f25590ccd6f2053378357cbe9209203e9f560913