usb: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-20-git-send-email-peter.maydell@linaro.org
diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
index 869a63c..6893028 100644
--- a/hw/usb/ccid-card-emulated.c
+++ b/hw/usb/ccid-card-emulated.c
@@ -26,6 +26,7 @@
  * the db parameter.
  */
 
+#include "qemu/osdep.h"
 #include <eventt.h>
 #include <vevent.h>
 #include <vreader.h>