INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_SET_INFO" - SET EXT-CTRL INFO
	AX = 0404h
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #03744)
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0400h/BP=0054h,AX=0402h/BP=0054h,AX=0406h/BP=0054h
SeeAlso: AX=0408h/BP=0054h,AX=040Ah/BP=0054h