roll: third_party/pigweed pw_tokenizer: Add prefix to AutoUpdatingDetokenizer

Allow AutoUpdatingDetokenizer to set the prefix in base
Detokenizer class

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/243612
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: e4d8db475f9d0cb325580ceb2f9085c972766bcb

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 5eec847de00e03..e4d8db475f9d0c
Roll-Count: 1
Roller-URL: https://ci.chromium.org/b/8733444457141348641
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I0644aee48670245f7bacb1e0235d47e5ed70c475
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/243672
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
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 5eec847..e4d8db4 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 5eec847de00e03c08e6557b2023d008bad70e2fc
+Subproject commit e4d8db475f9d0cb325580ceb2f9085c972766bcb