Fix headers in emulation mode.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/hsm/kek.h

@@ -19,6 +19,9 @@
 #define _DKEK_H_
 
 #include "crypto_utils.h"
+#ifdef ENABLE_EMULATION
+#include <stdbool.h>
+#endif
 
 extern int load_mkek(uint8_t *);
 extern int store_mkek(const uint8_t *);