Support more PSU Sensors

Base on PSU power sensors, support all other PSU sensors.

Tested By:
After run psusensor in BMC console, in xyz.openbmc_project.PSUSensor
PSU power, current, temperature, voltage and fan dbus interface has
been created with correct Thresholds and value.
Run ipmitool -I lanplus -H xxx -U root -P xxx sensor list, bellow
sensors can show as:
PSU2 Input Curre | 0.546      | Amps       | ok    | na        | na        | na        | 8.190     | na        | na
PSU2 Output Curr | 9.000      | Amps       | ok    | na        | na        | na        | 100.000   | 125.000   | na
PSU2 Fan Speed 1 | 3332.000   | RPM        | ok    | na        | na        | na        | na        | na        | na
PSU2 Input Power | 117.000    | Watts      | ok    | na        | na        | na        | 1357.200  | 1509.300  | na
PSU2 Output Powe | 105.300    | Watts      | ok    | na        | na        | na        | na        | na        | na
PSU2 Temperature | 26.000     | degrees C  | ok    | na        | na        | na        | 62.000    | 65.000    | na
PSU2 Input Volta | 235.000    | Volts      | ok    | na        | na        | na        | na        | na        | na

Change-Id: I2167594a8f369c8ed95b3dc3948f8f5b0bd8bdbb
Signed-off-by: Cheng C Yang <cheng.c.yang@linux.intel.com>
diff --git a/include/PSUSensor.hpp b/include/PSUSensor.hpp
index 8de480f..0c4edb1 100644
--- a/include/PSUSensor.hpp
+++ b/include/PSUSensor.hpp
@@ -4,14 +4,6 @@
 #include <sdbusplus/asio/object_server.hpp>
 #include <sensor.hpp>
 
-enum class SensorType
-{
-    tempSensor,
-    currSensor,
-    powerSensor,
-    voltSensor
-};
-
 class PSUSensor : public Sensor
 {
   public:
@@ -44,13 +36,13 @@
 {
   public:
     PSUProperty(std::string name, double max, double min, unsigned int factor) :
-        sensorTypeName(name), maxReading(max), minReading(min),
+        labelTypeName(name), maxReading(max), minReading(min),
         sensorScaleFactor(factor)
     {
     }
     ~PSUProperty() = default;
 
-    std::string sensorTypeName;
+    std::string labelTypeName;
     double maxReading;
     double minReading;
     unsigned int sensorScaleFactor;