[RFC PATCH] dmaengine: xilinx_dma: Fix per-channel direction reporting via device_caps

[Rahul Navale]

From: Rahul Navale <rahul.navale at ifm.com>

>Could you confirm that the DMA IP core in your PL design operates in 
>scatter Gather mode?

Yes, We confirmed that our DMA IP core in the PL design are configured 
for Scatter-Gather mode.