ppc: xilinx-ppc4xx: Port to DM serial

xilinx_uartlite has been ported to DM, this patch makes the
xilinx-ppc405-generic and the xilinx-ppc440-generic boards use the new
DM driver.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx-ppc405-generic_defconfig b/configs/xilinx-ppc405-generic_defconfig
index 53fafc3..e7132cd 100644
--- a/configs/xilinx-ppc405-generic_defconfig
+++ b/configs/xilinx-ppc405-generic_defconfig
@@ -7,3 +7,11 @@
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NET is not set
 # CONFIG_CMD_NFS is not set
+CONFIG_SYS_MALLOC_SIMPLE=y
+CONFIG_XILINX_UARTLITE=y
+CONFIG_SYS_NS16550=y
+CONFIG_OF_EMBED=y
+CONFIG_OF_CONTROL=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_DEFAULT_DEVICE_TREE="xilinx-ppc440-generic"