INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_CLOSE" - RELEASE DRIVER
	AX = 0210h
	BP = driver ID (see #03741) for V_HPHIL, others
Return: AH = status (see #03744)
	BP,DS destroyed
Desc:	place device in closed state, which disallows output to the device
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Eh