[roll third_party/pigweed] pw_third_party/tinyusb: GN build files

Given a checkout of TinyUSB this patch adds the GN build files to
compile the external core library and device/host classes.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/78600

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: fbd7b00c3f7bb12..5be62b801a351ca
Roller-URL: https://ci.chromium.org/b/8824422505011030897
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8824422505011030897
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I379132683b9a62df95edc23949dc179ff79108a9
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/79898
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 fbd7b00..5be62b8 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit fbd7b00c3f7bb126b4a561541586bbf65e4eae1b
+Subproject commit 5be62b801a351ca5f1e9f5b61d8605df5e885379