configs: harmony: enable live tree, mtd and ubi

U-Boot on Harmony recently got broken by ongoing driver model resp. live
tree migration work:

U-Boot 2018.03-rc3 (Feb 21 2018 - 15:43:08 +0100)

TEGRA20
Model: NVIDIA Tegra20 Harmony evaluation board
Board: NVIDIA Harmony
DRAM:  1 GiB
Video device 'dc@54200000' cannot allocate frame buffer memory -ensure
the device is set up before relocation
Error binding driver 'tegra_lcd': -28
Some drivers failed to bind
Error binding driver 'generic_simple_bus': -28
Some drivers failed to bind
initcall sequence 3ffa86d0 failed at call 00121dc0 (err=-28)

This commit fixes this by enabling live tree, MTD and UBI for Harmony as
well.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/include/configs/harmony.h b/include/configs/harmony.h
index 3ec9e87..51e284e 100644
--- a/include/configs/harmony.h
+++ b/include/configs/harmony.h
@@ -29,6 +29,10 @@
 #define CONFIG_TEGRA_NAND
 #define CONFIG_SYS_MAX_NAND_DEVICE	1
 
+/* Dynamic MTD partition support */
+#define CONFIG_MTD_PARTITIONS
+#define CONFIG_MTD_DEVICE	/* needed for mtdparts commands */
+
 /* Environment in NAND (which is 512M), aligned to start of last sector */
 #define CONFIG_ENV_OFFSET	(SZ_512M - SZ_128K) /* 128K sector size */