[libhandy] enum-value-object: Include config.h

[Adrien Plazas <aplazas src gnome org>]

commit bbd529189ef685ec98e0db42c6af3b6375b14ee0
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Tue Jul 28 16:37:30 2020 +0500

    enum-value-object: Include config.h
    
    HDY_AVAILABLE_IN_ALL macro in the following commits will depend on this.
    
    Signed-off-by: Alexander Mikhaylenko <alexm gnome org>

 src/hdy-enum-value-object.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/hdy-enum-value-object.c b/src/hdy-enum-value-object.c
index 0a7809bc..58ca13a7 100644
--- a/src/hdy-enum-value-object.c
+++ b/src/hdy-enum-value-object.c
@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: LGPL-2.1+
  */
 
+#include "config.h"
+
 #include "hdy-enum-value-object.h"
 
 /**