[roll third_party/pigweed] pw_build: pw_python_distribution package_data

Adds two new options for pw_python_distribution's setup.cfg
generation:

- include_extra_files_in_package_data: Will add files listed under
  extra_files in the setup.cfg file.

- auto_create_package_data_init_py_files: Controls if __init__.py
  files are auto-created in the generated package output.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/152692

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e25a85794d3d361..ece346637c612a8
Roller-URL: https://ci.chromium.org/b/8777465027725483665
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I9850099ce3e12475a65f880b6a4ab1d629f76e41
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/152975
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 e25a857..ece3466 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e25a85794d3d361121c3addc5e90185df07e6f92
+Subproject commit ece346637c612a81d6e13a21b3435d8ee18b66dd