fsl/fman: add dependency on HAS_DMA

A previous commit (5567e989) inserted a dependency on DMA
API that requires HAS_DMA to be added in Kconfig.
Signed-off-by: NMadalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/fman/Kconfig

@@ -2,6 +2,7 @@ config FSL_FMAN
 	tristate "FMan support"
 	depends on FSL_SOC || ARCH_LAYERSCAPE || COMPILE_TEST
 	select GENERIC_ALLOCATOR
+	depends on HAS_DMA
 	select PHYLIB
 	default n
 	help