mpc85xx, socrates: get rid of DM_USB warning

add some defines and get rid of USB warning.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/socrates_defconfig b/configs/socrates_defconfig
index 1730d57..2c87ec5 100644
--- a/configs/socrates_defconfig
+++ b/configs/socrates_defconfig
@@ -3,7 +3,6 @@
 CONFIG_MPC85xx=y
 # CONFIG_CMD_ERRATA is not set
 CONFIG_TARGET_SOCRATES=y
-# CONFIG_SYS_MALLOC_F is not set
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
@@ -37,6 +36,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="socrates"
 CONFIG_ENV_IS_IN_FLASH=y
 CONFIG_DM=y
+CONFIG_BLK=y
 # CONFIG_MMC is not set
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_FLASH_CFI_DRIVER=y
@@ -47,6 +47,7 @@
 CONFIG_RTC_RX8025=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 # CONFIG_USB_EHCI_HCD is not set
 CONFIG_USB_STORAGE=y
 CONFIG_VIDEO=y