ICE1712 driver,ICE1724 driver
 * Added SPI read routine
 * Added IEC958 Capture mixer controls
 * Improved Universe support
 * Headphone Amp renamed to External Amplifier
 * Fixed GPIO bug in Prodigy code (There is no GPIO23 on ICE1724)
Signed-off-by: Peter Christensen <peter@developers.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>