ivi-shell: include config.h in ivi-layout-transition.c

Every .c file must include config.h as the first thing.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

ivi-shell/ivi-layout-transition.c

@@ -23,6 +23,8 @@
  * SOFTWARE.
  */
 
+#include "config.h"
+
 #include <time.h>
 #include <assert.h>
 #include <stdlib.h>