dmaengine: ptdma: Extend ptdma to support multi-channel and version

To support multi-channel functionality with AE4DMA engine, extend the
PTDMA code with reusable components.

Reviewed-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/r/20241025095931.726018-4-Basavaraj.Natikar@amd.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>