ASoC: soc-pcm: add option to start DMA after DAI

Add option to start DMA component after DAI trigger. This is done
by filling the new struct snd_soc_component_driver::start_dma_last.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230228110145.3770525-2-claudiu.beznea@microchip.com


Signed-off-by: Mark Brown <broonie@kernel.org>