[Nut-upsdev] Patch blazer_usb.c from Brian R. Smith REALLY WORKS (UPSilon 2000 replacement)

[trantore]

Hi to all!

Path send by Brian R. Smith with subject "[Nut-upsdev] Dynamix 650 VA USB - 
broken, have rough fix" really works!

Tested with no-name UPS (works with UPSilon 2000 Windows software) and has USB 
vendorid=0001 productid=0000

Please, add it to the main branch of blazer_usb.c
I belive that several users agree this.