dmaengine: ioatdma: remove dma_v2.*

Clean out dma_v2 and remove ioat2 calls since we are moving everything
to just ioat.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --cc drivers/dma/ioat/Makefile
Simple merge

diff --cc drivers/dma/ioat/dca.c
Simple merge

diff --cc drivers/dma/ioat/dma.c
Simple merge

diff --cc drivers/dma/ioat/dma.h
Simple merge

diff --cc drivers/dma/ioat/dma_v2.c
Simple merge

diff --cc drivers/dma/ioat/dma_v2.h
Simple merge

diff --cc drivers/dma/ioat/dma_v3.c
Simple merge

diff --cc drivers/dma/ioat/pci.c
Simple merge