Use PCA9956 driver in PowerPlant and Datacenter

components/common/include/legos_power.h

@@ -23,7 +23,7 @@ typedef struct power_monitor {
 typedef struct power_readings {
     float voltage; // Bus Voltage in mV
     float current; // Current in mA
-    float power;   // Power in mW
+    float power;   // Power in W
 } power_readings;
 
 /**