ARM: dts: aspeed: bonnell: Add DIMM SPD

Add the DIMM SPD to the processor I2C busses.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230322140348.569397-5-eajames@linux.ibm.com


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