[roll third_party/pigweed] pw_log_tokenized, pw_metric: Use masked tokens

Use pw_tokenizer's *_MASK macros to mask string tokens for
pw_log_tokenized and pw_metric. This masks the tokens before they're
stored in the database so they can be decoded without extra processing.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/37324

third_party/pigweed Rolled-Commits: 0e1f5e480c1d98c..d731b35033e06dc
Roller-URL: https://ci.chromium.org/b/8852492931354600736
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8852492931354600736
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I9011ee43e4860b47c8e827cc6606f24036b1ef49
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/38240
Reviewed-by: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 0e1f5e4..d731b35 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 0e1f5e480c1d98c8c06cd71cf11ddf7207d15aa4
+Subproject commit d731b35033e06dc0c826daf50f9b18714e9f7bc2