[alsa-devel] tegra30 tdm audio support

[Ben Dooks]

This adds support for tegra30 tdm audio and fixes a bug in the fifo
handling on rx when non-32 bit aligned data is used.

v2:
- moved edge-control and data-offset to the set_fmt callbacks
- fixed dev_dbg in set_tdm callback
- fixed dev_dbg message contents in set_tdm callback
- changed fsync width to be permanently 1 clock

v3:
- cleanup fsync patch
- fix rebase issue with tdm patch