ARM: dts: aspeed: everest: Add power supply i2c devices

Add the i2c/pmbus power supply devices to the everest device tree.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210329150020.13632-17-eajames@linux.ibm.com


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