Update following to patches posted to alsa-devel

See:
[alsa-devel] [PATCH v2 0/3] snd-firewire-lib: add handling CMP output connection
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-April/061607.html

[alsa-devel] [PATCH v2 0/4] snd-firewire-lib: add handling AMDTP receive stream
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-April/061611.html