include stdint.h for int32_t/uint32_t

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
diff --git a/ivi-shell/ivi-layout.c b/ivi-shell/ivi-layout.c
index dec4936..7c2f32d 100644
--- a/ivi-shell/ivi-layout.c
+++ b/ivi-shell/ivi-layout.c
@@ -59,6 +59,7 @@
 
 #include <string.h>
 #include <assert.h>
+#include <stdint.h>
 
 #include "compositor/weston.h"
 #include "compositor.h"