ARM: dts: aspeed: sbp1: IBM sbp1 BMC board

Add a device tree for IBM sbp1 BMC board which is based on AST2600 SOC.

sbp1 baseboard has:
- support for up to four Sapphire Rapids sockets having 16 DIM

ARM: dts: aspeed: sbp1: IBM sbp1 BMC board

Add a device tree for IBM sbp1 BMC board which is based on AST2600 SOC.

sbp1 baseboard has:
- support for up to four Sapphire Rapids sockets having 16 DIMMS each.
- 240 core/480 threads at maximum
- 32x CPU PCIe slots
- 2x M.2 PCH PCIe slots
- Dual 200Gbit/s NIC
- SPI TPM

Added the following:
- Indication LEDs
- I2C mux & GPIO controller, pin assignments,
- Thermister,
- Voltage regulator
- EEPROM/VPD

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Link: https://patch.msgid.link/20241104092220.2268805-2-naresh.solanki@9elements.com
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>

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