configs: T2080: enable DM_I2C

This enables DM_I2C in T2080 defconfigs

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/T2080RDB_NAND_defconfig b/configs/T2080RDB_NAND_defconfig
index 292a3be..f7206a9 100644
--- a/configs/T2080RDB_NAND_defconfig
+++ b/configs/T2080RDB_NAND_defconfig
@@ -79,3 +79,4 @@
 CONFIG_FSL_ESPI=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
+CONFIG_DM_I2C=y