MAX77620 CPU Regulator

After we have confirmed we have no shorts on the VSYS rail, a working BQ24193 and we are powering the console from a bench power supply at VBAT we can move on to turning on the console with tweezers and testing the motherboards main chips.

Starting with the MAX77620 which is responsible for most of the CPU core voltages, RAM and other key components, as well as sending the "enable" signal to the other second-stage regulators when the time comes.

TODO