The label field for temperature sensors is decimal

It turns out that the OCC driver displays the value of the
tempX_label file as a decimal as opposed to the hex format we just
speculated it would be.

For example, a 0xC0000001 value will read as 3221225473.

Change the code to read that as a uint32_t and then extract that type
and instance fields directly from it.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I64db4670cf8a48030cca041fad8892de6188f89e
diff --git a/occ_manager.cpp b/occ_manager.cpp
index 4b5df04..a6d18ac 100644
--- a/occ_manager.cpp
+++ b/occ_manager.cpp
@@ -220,7 +220,7 @@
 
             continue;
         }
-        std::string labelValue;
+        uint32_t labelValue{0};
         fileOpen >> labelValue;
         fileOpen.close();
 
@@ -250,13 +250,8 @@
         }
         else
         {
-            auto sensorTypeID =
-                open_power::occ::utils::checkLabelValue(labelValue);
-            if (sensorTypeID == std::nullopt)
-            {
-                continue;
-            }
-            auto& [type, instanceID] = *sensorTypeID;
+            uint16_t type = (labelValue & 0xFF000000) >> 24;
+            uint16_t instanceID = labelValue & 0x0000FFFF;
 
             if (type == OCC_DIMM_TEMP_SENSOR_TYPE)
             {