manager: include config-validator.hpp always

There was an issue with

phosphor::led::validateConfigV1(systemLedMap);

being not included when using meson option

use-json

as false (yaml config), since it was transitively included
by manager/json-parser.hpp

Directly including it should fix the issue.

Change-Id: I056cd524ff255e4409844f74bd7755ab5ee857d6
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/manager/led-main.cpp b/manager/led-main.cpp
index 6d1ef82..450f4d7 100644
--- a/manager/led-main.cpp
+++ b/manager/led-main.cpp
@@ -7,6 +7,7 @@
 #else
 #include "led-gen.hpp"
 #endif
+#include "config-validator.hpp"
 #include "manager.hpp"
 #include "serialize.hpp"
 #include "utils.hpp"