ARM: zynqmp_r5: Setup DM_ETH/MMC if NET/MMC is enabled

Setup proper ETH/MMC dependency for the whole platform.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

arch/arm/Kconfig

@@ -931,6 +931,8 @@ config ARCH_ZYNQMP_R5
 	select CLK
 	select CPU_V7R
 	select DM
+	select DM_ETH if NET
+	select DM_MMC if MMC
 	select DM_SERIAL
 	select OF_CONTROL
 	imply CMD_DM