Modify the qcom-sps-dma driver to adapt to the framework changes in
dmaengine introduced between kernel-3.18 and kernel-4.4 .
Change-Id: I000e209af6cf26e652d6937af67eb3382d2d2262
Add a snapshot of the qcom-sps-dma driver from the 3.18 kernel branch.
3.18 baseline: e70ad0cd5efdd9dc91a77dcdac31d6132e1315c1
Change-Id: Ifa64e83d25e6cca220a0435757da861e28f97480