dmaengine: xgene-dma: Fix "incorrect type in assignement" warnings
dmaengine: xgene-dma: Fix "incorrect type in assignement" warnings

This patch fixes sparse warnings like incorrect type in assignment
(different base types), cast to restricted __le64.

Reported-by: kbuild test robot <24f7fe9d205c8a9f6ade0c2894e14303ca16087f@intel.com>
Signed-off-by: Rameshwar Prasad Sahu <4e08a5d943d74f75fd0f1a58aea88e0e53b7a132@apm.com>
Signed-off-by: Vinod Koul <5cf69c63beb17bf38d63aa0e923ee8256af0e205@intel.com>

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