The overall status of an equipped power supply. For AC multiple power
supplies, this represents the overall status of the first power supply
in the tray (or shelf). For any other type, this represents the overall
status of the power supply. If tmnxChassisPowerSupply1Status is
'deviceStateOk', then all monitored statuses are 'deviceStateOk'. A
value of 'deviceStateFailed' represents a condition where at least one
monitored status is in a failed state.