roll: third_party/pigweed pw_bluetooth_sapphire: Only create IsoStreamManager if supported

Original-Bug: 325646523
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/291257
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 38bf4de1bfeb3876d725345cdcda60f25ea02491

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: e0318cbf853bd2..38bf4de1bfeb38
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8714709162571843265
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Idd348c537edef7b05ffa2ec51030f05214afed09
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/292292
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index e0318cb..38bf4de 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e0318cbf853bd2838ef0be854ae747593c445093
+Subproject commit 38bf4de1bfeb3876d725345cdcda60f25ea02491