roll: third_party/pigweed: pw_bluetooth_sapphire: Add ISO support to controllers

Implement support in Banjo and FIDL controllers for ISO data
streams.

Original-Bug: b/311639690
Test: fx test //src/connectivity/bluetooth/core/bt-host
      Manual testing on Sherlock:
      - OOBE
      - A2DP (Source and Sink)
      - HFP (AG)
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/998736
GitOrigin-RevId: e8c75890a68e5a817272737408ca399edf598674
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/218992
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 73623f58298ca29..afe76e45d26332d
Roller-URL: https://ci.chromium.org/b/8742824342596044721
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I829203de433a9b98bcbce54e138b1578bc033c97
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/221291
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: 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 73623f5..afe76e4 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 73623f58298ca29f6d5272b39afb3427bcabe8e1
+Subproject commit afe76e45d26332d8b49a317401a48f20aef7d6c5