build: meson support for phosphor-log-manager

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I5400d21d59b3c1ff8bde61d80eaec1cb6701a8cb
diff --git a/elog_meta.hpp b/elog_meta.hpp
index 81d8e58..a4ace76 100644
--- a/elog_meta.hpp
+++ b/elog_meta.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "config.h"
+
 #include "callouts-gen.hpp"
 #include "elog_entry.hpp"