ALSA: Add description of new snd-msnd-* drivers

    This module supports multiple devices and PnP.

  Module snd-msnd-classic

  -----------------------

    Module for Turtle Beach MultiSound Classic, Tahiti or Monterey

    soundcards.

    io		- Port # for msnd-classic card

    irq		- IRQ # for msnd-classic card

    mem		- Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,

		  0xe0000 or 0xe8000)

    write_ndelay - enable write ndelay (default = 1)

    calibrate_signal - calibrate signal (default = 0)

    isapnp	- ISA PnP detection - 0 = disable, 1 = enable (default)

    digital	- Digital daughterboard present (default = 0)

    cfg		- Config port (0x250, 0x260 or 0x270) default = PnP

    reset	- Reset all devices

    mpu_io	- MPU401 I/O port

    mpu_irq	- MPU401 irq#

    ide_io0	- IDE port #0

    ide_io1	- IDE port #1

    ide_irq	- IDE irq#

    joystick_io	- Joystick I/O port

    The driver requires firmware files "turtlebeach/msndinit.bin" and

    "turtlebeach/msndperm.bin" in the proper firmware directory.

    See Documentation/sound/oss/MultiSound for important information

    about this driver.  Note that it has been discontinued, but the 

    Voyetra Turtle Beach knowledge base entry for it is still available

    at

	http://www.turtlebeach.com/site/kb_ftp/790.asp

  Module snd-msnd-pinnacle

  ------------------------

    Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards.

    io		- Port # for pinnacle/fiji card

    irq		- IRQ # for pinnalce/fiji card

    mem		- Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000,

		  0xe0000 or 0xe8000)

    write_ndelay - enable write ndelay (default = 1)

    calibrate_signal - calibrate signal (default = 0)

    isapnp	- ISA PnP detection - 0 = disable, 1 = enable (default)

    The driver requires firmware files "turtlebeach/pndspini.bin" and

    "turtlebeach/pndsperm.bin" in the proper firmware directory.

  Module snd-mtpav

  ----------------