ALSA: add Apple iSight microphone driver

This adds an experimental driver for the front and rear microphones of
the Apple iSight web camera.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/firewire/Kconfig
Simple merge

diff --cc sound/firewire/Makefile
Simple merge

diff --cc sound/firewire/isight.c
Simple merge

diff --cc sound/firewire/iso-resources.c
Simple merge

diff --cc sound/firewire/packets-buffer.c
Simple merge