roll: third_party/pigweed 2 commits

704a5f3dde6a006 pw_spi_linux: Remove linkage specification from cl
7654e112c63755f *: Change typedef to using

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: d97c1620775ac5c..704a5f3dde6a006
Roller-URL: https://ci.chromium.org/b/8739410123046014417
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Idbe1134d6e8d9335b61d61f6d7c0b4f5c76e5a4d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/230374
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index d97c162..704a5f3 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit d97c1620775ac5cb0a80c08913d70eda760e80bd
+Subproject commit 704a5f3dde6a006418cbf01a3b9a67e6957f1164