ARM: dts: aspeed: Add Facebook Anacapa platform

ARM: dts: aspeed: Add Facebook Anacapa platform

The Meta Anacapa BMC is the DC-SCM (Data Center Secure Control
Module) controller for the Meta OCP Open Rack Wide (ORW) compute tray.
This platform is a key component of the AMD Helios AI rack reference
design system, designed for next-generation AI workloads.

The BMC utilizes the Aspeed AST2600 SoC to manage the compute tray, which
contains up to 4 AMD Instinct MI450 Series GPUs (connected via a Broadcom
OCP NIC) and host CPUs. Its primary role is to provide essential system
control, power sequencing, and telemetry reporting for the compute complex
via the OpenBMC software stack.

For more detail on the AMD Helios reference design:

https://www.amd.com/en/blogs/2025/amd-helios-ai-rack-built-on-metas-2025-ocp-design.html

Signed-off-by: Peter Shen <sjg168@gmail.com>
Link: https://patch.msgid.link/20251219091632.1598603-3-sjg168@gmail.com
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>