dma: mmp_pdma: add support for cyclic DMA descriptors
dma: mmp_pdma: add support for cyclic DMA descriptors

Provide a callback to prepare cyclic DMA transfers.
This is for instance needed for audio channel transport.

Signed-off-by: Daniel Mack <70806a71956ed8873ecff8522779dae1401a1b4a@gmail.com>
Signed-off-by: Vinod Koul <5cf69c63beb17bf38d63aa0e923ee8256af0e205@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs