usbredir: reorder fields in USBRedirDevice to reduce padding

Changing the current ordering saves 8 bytes per entry in x86_64.
Signed-off-by: Nzhenwei.pi <zhenwei.pi@youruncloud.com>
Message-id: 1520318781-22644-1-git-send-email-zhenwei.pi@youruncloud.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/usb/redirect.c

@@ -106,10 +106,10 @@ struct USBRedirDevice {
     USBDevice dev;
     /* Properties */
     CharBackend cs;
+    bool enable_streams;
     uint8_t debug;
-    char *filter_str;
     int32_t bootindex;
-    bool enable_streams;
+    char *filter_str;
     /* Data passed from chardev the fd_read cb to the usbredirparser read cb */
     const uint8_t *read_buf;
     int read_buf_size;