Add missing config.h includes

Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/evdev-middle-button.c

@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <stdint.h>
 
 #include "evdev.h"

src/evdev-mt-touchpad-buttons.c

@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <errno.h>
 #include <limits.h>
 #include <math.h>

src/evdev-mt-touchpad-edge-scroll.c

@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <errno.h>
 #include <limits.h>
 #include <math.h>

src/timer.c

@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <assert.h>
 #include <errno.h>
 #include <inttypes.h>