[2/2] configs: arm: ls1021aiot: enable CONFIG_DM_USB support

===================== WARNING ======================
This board does not use CONFIG_DM_USB. Please update
the board to use CONFIG_DM_USB before the v2019.07 release.
Failure to update by the deadline may result in board removal.
See doc/driver-model/migration.rst for more info.
====================================================

Signed-off-by: Ran Wang <ran.wang_1 at nxp.com>
---
 configs/ls1021aiot_qspi_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configs/ls1021aiot_qspi_defconfig b/configs/ls1021aiot_qspi_defconfig
index 8a3b796..2ae0cb0 100644
--- a/configs/ls1021aiot_qspi_defconfig
+++ b/configs/ls1021aiot_qspi_defconfig
@@ -43,6 +43,7 @@  CONFIG_DM_SPI=y
 CONFIG_FSL_DSPI=y
 CONFIG_FSL_QSPI=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_DM_I2C=y