ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream

ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream

This fixes a memory corruption when ASoC devices are used in
full-duplex mode. Specifically for pxa-ssp code, where this pointer
is dynamically allocated for each direction and destroyed upon each
stream start.

All other platforms are fixed blindly, I couldn't even compile-test
them. Sorry for any breakage I may have caused.

Reported-by: Sven Neumann <[email protected]>
Reported-by: Michael Hirsch <[email protected]>
Signed-off-by: Daniel Mack <[email protected]>
Acked-by: Peter Ujfalusi <[email protected]>
Acked-by: Jarkko Nikula <[email protected]>
Acked-by: Liam Girdwood <[email protected]>
Signed-off-by: Mark Brown <[email protected]>