[jibz5]

Summary

• Add SystemPowerState enum to controller module
• Add set_power_state() method to Controller trait
• Add SetSystemPowerState command to internal and external APIs
• Implement set_power_state() for TPS6699x driver
• Add mock controller implementation

Dependencies

• Requires tps6699x with Sx App Config register support

[RobertZ2011]

You'll need to do a cargo update tps6699x in both of the example directory as those are separate binaries from the perspective of cargo. You'll also need to implement the new function in mock_controller.rs.