On QDS board with DDR4 DIMM, LPUART is used as console output to verify DCU driver. This patch adds ls1021aqds_ddr4_nor_lpuart_defconfig for this support.
Signed-off-by: Alison Wang Reviewed-by: York Sun
CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4,LPUART" CONFIG_ARM=y CONFIG_TARGET_LS1021AQDS=y
