ARM: da850evm_direct_nor_defconfig: Enable DM_SERIAL

With DM enabled, this patch enables DM_SERIAL and removes
the NS16550 initialization from da850_lowlevel since the driver
will take care of that itself.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/arch/arm/mach-davinci/da850_lowlevel.c b/arch/arm/mach-davinci/da850_lowlevel.c
index 95dc93a..822e0dc 100644
--- a/arch/arm/mach-davinci/da850_lowlevel.c
+++ b/arch/arm/mach-davinci/da850_lowlevel.c
@@ -288,10 +288,10 @@
 	/* GPIO setup */
 	board_gpio_init();
 
-
+#if !CONFIG_IS_ENABLED(DM_SERIAL)
 	NS16550_init((NS16550_t)(CONFIG_SYS_NS16550_COM1),
 			CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
-
+#endif
 	/*
 	 * Fix Power and Emulation Management Register
 	 * see sprufw3a.pdf page 37 Table 24