dm: arm: ls1021a: add i2c DM support

This supports i2c DM and enables CONFIG_DM_I2C
for SoC LS1021A

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/ls1021aqds_ddr4_nor_lpuart_defconfig b/configs/ls1021aqds_ddr4_nor_lpuart_defconfig
index eaa26ce..c0d9395 100644
--- a/configs/ls1021aqds_ddr4_nor_lpuart_defconfig
+++ b/configs/ls1021aqds_ddr4_nor_lpuart_defconfig
@@ -67,3 +67,5 @@
 CONFIG_VIDEO_FSL_DCU_FB=y
 CONFIG_VIDEO=y
 # CONFIG_VIDEO_SW_CURSOR is not set
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y