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-private.h b/ivi-shell/ivi-layout-private.h
index 66b19f6..b6f0889 100644
--- a/ivi-shell/ivi-layout-private.h
+++ b/ivi-shell/ivi-layout-private.h
@@ -26,6 +26,8 @@
 #ifndef _ivi_layout_PRIVATE_H_
 #define _ivi_layout_PRIVATE_H_
 
+#include <stdint.h>
+
 #include "compositor.h"
 #include "ivi-layout-export.h"