configs: Migrate RBTREE, LZO, CMD_MTDPARTS, CMD_UBI and CMD_UBIFS

The above CONFIG options are in Kconfig, and now have correct depends and
inter-dependencies.  Migrate these to configs/ from include/configs/.  In the
case of CMD_UBIFS also change it to be a default y if CMD_UBI.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ti816x_evm_defconfig b/configs/ti816x_evm_defconfig
index 2ae72b2..481dcc6 100644
--- a/configs/ti816x_evm_defconfig
+++ b/configs/ti816x_evm_defconfig
@@ -30,17 +30,13 @@
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_MTDPARTS=y
 # CONFIG_ISO_PARTITION is not set
 # CONFIG_EFI_PARTITION is not set
 CONFIG_OF_CONTROL=y
 CONFIG_DM=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
-CONFIG_CMD_DHCP=y
-CONFIG_CMD_MII=y
-CONFIG_CMD_PING=y
-CONFIG_CMD_EXT2=y
-CONFIG_CMD_FAT=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_SYS_NS16550=y
 # CONFIG_USE_PRIVATE_LIBGCC is not set