[I/OAT]: ioatdma.c needs linux/dma-mapping.h

For DMA_*_MASK defines.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/dma/ioatdma.c

@@ -30,6 +30,7 @@
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
 #include <linux/delay.h>
+#include <linux/dma-mapping.h>
 #include "ioatdma.h"
 #include "ioatdma_io.h"
 #include "ioatdma_registers.h"