ARM: dts: aspeed: everest: Add max31785 fan controller device

Add the max31785 configuration at address 0x52 on i2c14 behind mux0
channel 3.

Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210329150020.13632-14-eajames@linux.ibm.com


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