dma: tegra: implement suspend/resume callbacks
dma: tegra: implement suspend/resume callbacks

Implement suspend/resume callbacks to store APB DMA channel's
register on suspend and restore APB DMA channel's register on
resume.

Signed-off-by: Laxman Dewangan <8ef6cd53fa4ede16d655e2562b753173823989c1@nvidia.com>
Signed-off-by: Vinod Koul <5cf69c63beb17bf38d63aa0e923ee8256af0e205@intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs