PEL: Print host trans state in peltool

In the UserHeader section, add an entry into peltool's JSON
output for the host transmission state.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Ie906a447859e30175652d291ef2f929e8a7077f6
diff --git a/extensions/openpower-pels/pel_values.hpp b/extensions/openpower-pels/pel_values.hpp
index 9a1ed88..a52c8b3 100644
--- a/extensions/openpower-pels/pel_values.hpp
+++ b/extensions/openpower-pels/pel_values.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "pel_types.hpp"
+
 #include <map>
 #include <string>
 #include <tuple>
@@ -105,6 +107,11 @@
  */
 extern const std::map<std::string, std::string> creatorIDs;
 
+/**
+ * @brief Map for transmission states
+ */
+extern const std::map<TransmissionState, std::string> transmissionStates;
+
 } // namespace pel_values
 } // namespace pels
 } // namespace openpower