Remove creation of an soc-audio device from the machine platform_driver probe
function, and add a call to snd_soc_register_card() instead.
The current code still works, but this mechanism has been deprecated, if I'm not
mistaken. The ASoC core code produces the warning "ASoC: machine Palm/PXA27x
should use snd_soc_register_card()"
Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>