[third_party/pigweed] Roll 2 commits

c5270f6aeecb805 pw_presubmit: Add is_shadow/is_prod members to con
7e4cbf3a3ef1f43 pw_presubmit: Refactor the coverage options

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4209e8f954d189c..c5270f6aeecb805
Roller-URL: https://ci.chromium.org/b/8763051617692858529
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I35c5844e541c6708da51d131599f81538a63162b
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/183083
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 4209e8f..c5270f6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4209e8f954d189c4fe14ca88490ddf7b968fe710
+Subproject commit c5270f6aeecb8059f9d85839c405deef1f51efd3