usbdev.c: Add missing <inttypes.h> include

Change-Id: Ie23612226a48d6732750f51547642da0a6257dd8
Signed-off-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/36219
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

usbdev.c

@@ -15,6 +15,7 @@
  * GNU General Public License for more details.
  */
 
+#include <inttypes.h>
 #include <stdbool.h>
 #include <string.h>
 #include <libusb.h>