roll: pigweed, pw_toolchain: pw_bluetooth: Add generic HCI command definition

Add a generic HCI command definition, to support the creation of
arbitrary command packets in emboss. One immediate use case for
this is the generation of vendor-specific commands.

Original-Bug: b/42167863
Test: pw presubmit --step gn_chre_googletest_nanopb_sapphire_build
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/224931
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: d39a9561840c8fe..44e7233eced4907
Roller-URL: https://ci.chromium.org/b/8741941887816936065
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I8c19b5449ad8d6f502ad02a01ca7ac7c90e92fd7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/225132
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/WORKSPACE b/WORKSPACE
index 7106018..2d3387f 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -84,8 +84,8 @@
     name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-07-19.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8741942284303072385.
-    commit = "d39a9561840c8fe5931ee4d9ca848bf1acf6eca4",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8741941887816936065.
+    commit = "44e7233eced490717c56409f4daa09392f611b1e",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed.git",
 )
 
@@ -93,8 +93,8 @@
     name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-07-19.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8741942284303072385.
-    commit = "d39a9561840c8fe5931ee4d9ca848bf1acf6eca4",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8741941887816936065.
+    commit = "44e7233eced490717c56409f4daa09392f611b1e",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed.git",
     strip_prefix = "pw_toolchain_bazel",
 )