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The flag parameter is added in the cyclic transfer request.
Use the flag option of:
- DMA_PREP_INTERRUPT for enabling interrupt.
- DMA_CTRL_ACK for deciding whether ack is requred or not for
  descriptor.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>