use proper callout string for next level support procedure

Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
Change-Id: I23233163e5bc09d1d5b9980c2356349e92ff1794
diff --git a/analyzer/callout.hpp b/analyzer/callout.hpp
index 8c54793..06812a5 100644
--- a/analyzer/callout.hpp
+++ b/analyzer/callout.hpp
@@ -108,7 +108,7 @@
     }
 };
 
-inline const Procedure Procedure::NEXTLVL{"NEXTLVL"};
+inline const Procedure Procedure::NEXTLVL{"next_level_support"};
 
 /** @brief Container class for bus callout service actions. */
 class BusType