ARM: dts: aspeed: yosemite4: add Facebook Yosemite 4 BMC

Add linux device tree entry for Yosemite 4 devices connected to BMC.
The Yosemite 4 is a Meta multi-node server platform, based on AST2600 SoC.

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230810070032.335161-3-Delphine_CC_Chiu@wiwynn.com


Signed-off-by: Joel Stanley <joel@jms.id.au>