[third_party/pigweed] Roll 2 commits

bc6388fd60ff21b pw_tokenizer: Switch detokenize.h docs to Doxygen
5ee9af02a1ef96c docs: Mention @deprecated in the Doxygen style gui

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: c6e83c173d13b52..bc6388fd60ff21b
Roller-URL: https://ci.chromium.org/b/8749844960963366641
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I701e99bbfecb84aada2066ff6b4a64afa76bf715
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/205950
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index c6e83c1..bc6388f 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit c6e83c173d13b52d9542700bf40743d2548fe9a2
+Subproject commit bc6388fd60ff21b4122104864285da010fe90521