feat(container): hack for missing defines in Zephyr

Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>

Author: casaroli

src/ocre/include/ocre/container.h

@@ -9,6 +9,20 @@
 #define OCRE_CONTAINER_H
 
 #include <stdbool.h>
+#include <unistd.h>
+
+/* Hack until Zephyr define those */
+#ifndef STDIN_FILENO
+#define STDIN_FILENO 0
+#endif
+
+#ifndef STDOUT_FILENO
+#define STDOUT_FILENO 1
+#endif
+
+#ifndef STDERR_FILENO
+#define STDERR_FILENO 2
+#endif
 
 /**
  * @brief The possible status of a container