fix: prevent persistent hang due when failing to send error status

Author: mikesmitty

src/machine/usb/msc/msc.go

@@ -164,6 +164,7 @@ func (m *msc) sendCSW(status csw.Status) {
 	}
 	m.cbw.CSW(status, residue, m.cswBuf)
 	m.state = mscStateStatusSent
+	m.queuedBytes = csw.MsgLen
 	m.sendUSBPacket(m.cswBuf)
 }