INT 10 - SOLLEX SuperVGA - VIDEO SUPPORT CONTROL - INITIALIZE VIDEO SUPPORT

	AX = 7F03h
	BL = 01h
	CX = support request
	ES = segment of support code
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
Note:	initializes the indicated video support by calling ES:0003h; this
	  function may be used to switch the active video support back to
	  ROM after AX=7F03h/BL=02h
SeeAlso: AX=7F03h/BL=00h