Temporary fix for Windows hosts.

Author: Filip Jagodzinski

TESTS/usb_device/hid/main.cpp

@@ -306,6 +306,7 @@ void test_generic_raw_io()
     usb_hid.connect();
     greentea_send_kv(MSG_KEY_TEST_RAW_IO, REPORT_SIZE);
     usb_hid.wait_ready();
+    wait_ms(500);
 
     // Report ID omitted here. There are no Report ID tags in the Report descriptor.
     HID_REPORT input_report = {};