linux-phytec-ti

crypto: sa2ul: Use dma_chan device for dma map/unmap calls

Use dma_chan device for dma map/unmap calls as the dma device
is the one responsible for handlding the sg lists. This fixes
the sa2ul crypto_manager test case failures after msmc enabling.

While at it call unmap in sa_sham_dma_in_callback as well.

Signed-off-by: Keerthy <j-keerthy@ti.com>