Adds a basic Bluetooth 5.3 HCI Uart Transport Layer decoder that
invokes a callback for each HCI packet as supported by the HCI
UART Transport Layer.
Change-Id: Ie1172c2485b0f38fc0137852e9306f96ea004b4b
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/56222
Pigweed-Auto-Submit: Ewout van Bekkum <ewout@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
