peltool: Print the Words6To9 'Description' field

Include the 'Description' field from the Words6To9 registry entry when printing
SRC error details.

Changed from this:

"Error Details": {
    "Message":              "There was a failure when reading a sensor device",
    "CALLOUT_ERRNO":        "0x5"
}

to this:

"Error Details": {
    "Message":              "There was a failure when reading a sensor device",
    "CALLOUT_ERRNO": [
                            "0x5",
                            "errno of the failure"
    ]
}

Signed-off-by: Harisuddin Mohamed Isa <harisuddin@gmail.com>
Change-Id: Icc107b0516062eb891f14f3ff3f3cffd316c6d77
diff --git a/test/openpower-pels/registry_test.cpp b/test/openpower-pels/registry_test.cpp
index 08eefc4..2b5e482 100644
--- a/test/openpower-pels/registry_test.cpp
+++ b/test/openpower-pels/registry_test.cpp
@@ -76,13 +76,13 @@
                 {
                     "6":
                     {
-                        "description": "Failing unit number",
+                        "Description": "Failing unit number",
                         "AdditionalDataPropSource": "PS_NUM"
                     },
 
                     "7":
                     {
-                        "description": "bad voltage",
+                        "Description": "bad voltage",
                         "AdditionalDataPropSource": "VOLTAGE"
                     }
                 }
@@ -180,11 +180,11 @@
 
     auto word = (*hexwords).find(6);
     EXPECT_NE(word, (*hexwords).end());
-    EXPECT_EQ(word->second, "PS_NUM");
+    EXPECT_EQ(std::get<0>(word->second), "PS_NUM");
 
     word = (*hexwords).find(7);
     EXPECT_NE(word, (*hexwords).end());
-    EXPECT_EQ(word->second, "VOLTAGE");
+    EXPECT_EQ(std::get<0>(word->second), "VOLTAGE");
 
     auto& sid = entry->src.symptomID;
     EXPECT_TRUE(sid);
@@ -296,6 +296,7 @@
       {
         "8":
         {
+            "Description": "TEST",
             "AdditionalDataPropSource": "TEST"
         }
       }
@@ -311,6 +312,7 @@
       {
         "R":
         {
+            "Description": "TEST",
             "AdditionalDataPropSource": "TEST"
         }
       }