[roll third_party/pigweed] pw_software_update: Add SetTransferred rpc

Allow update transfer to be marked complete with an rpc. This makes
recovering a previously finished transfer across device reboot possible.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/76860

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: f1098798fb134d8..228b22d3361d0b3
Roller-URL: https://ci.chromium.org/b/8825831031586757329
Cq-Cl-Tag: roller-builder:pigweed-sample-project-roller
Cq-Cl-Tag: roller-bid:8825831031586757329
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I6cea8f91e40ec66a0ed037752919ce3a2222593a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/sample_project/+/77000
Bot-Commit: 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 f109879..228b22d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit f1098798fb134d8900b3024589587430446db39e
+Subproject commit 228b22d3361d0b30a2b48752c663c5b03bb20302