dmaengine: xilinx: dpdma: Add missing dependencies to Kconfig

The driver depends on both OF and IOMEM support, express those
dependencies in Kconfig. This fixes a build failure on S390 reported by
the 0day bot.

Reported-by: kernel test robot <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Tested-by: Jianqiang Chen <[email protected]>
Reviewed-by: Jianqiang Chen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

Author: pinchartl

drivers/dma/Kconfig

@@ -701,6 +701,7 @@ config XILINX_ZYNQMP_DMA
 
 config XILINX_ZYNQMP_DPDMA
 	tristate "Xilinx DPDMA Engine"
+	depends on HAS_IOMEM && OF
 	select DMA_ENGINE
 	select DMA_VIRTUAL_CHANNELS
 	help