udoo_neo: Fixes for booting from the mSD card

This fixes booting from the mSD card from both SPL and when
using it for the OS booting. It also cleans up a few mmc
booting bits that are no longer needed.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/include/configs/udoo_neo.h b/include/configs/udoo_neo.h
index b06abc9..e2b432e 100644
--- a/include/configs/udoo_neo.h
+++ b/include/configs/udoo_neo.h
@@ -29,7 +29,7 @@
 	"fdt_addr=0x83000000\0" \
 	"fdt_addr_r=0x83000000\0" \
 	"ip_dyn=yes\0" \
-	"mmcdev=0\0" \
+	"mmcdev=1\0" \
 	"mmcrootfstype=ext4\0" \
 	"findfdt="\
 		"if test $board_name = BASIC; then " \
@@ -49,7 +49,7 @@
 	BOOTENV
 
 #define BOOT_TARGET_DEVICES(func) \
-	func(MMC, mmc, 0) \
+	func(MMC, mmc, 1) \
 	func(DHCP, dhcp, na)
 
 #include <config_distro_bootcmd.h>