Minor cleanups in iceprog/mpsse.h

Signed-off-by: Clifford Wolf <clifford@clifford.at>
diff --git a/iceprog/mpsse.h b/iceprog/mpsse.h
index 961cfa5..b64b076 100644
--- a/iceprog/mpsse.h
+++ b/iceprog/mpsse.h
@@ -20,6 +20,8 @@
 #ifndef MPSSE_H
 #define MPSSE_H
 
+#include <stdint.h>
+
 void mpsse_check_rx(void);
 void mpsse_error(int status);
 uint8_t mpsse_recv_byte(void);
@@ -35,4 +37,4 @@
 void mpsse_init(int ifnum, const char *devstr, bool slow_clock);
 void mpsse_close(void);
 
-#endif /* MPSSE_H */
\ No newline at end of file
+#endif /* MPSSE_H */