configs: MPC8548CDS: enable DM_I2C

This enables DM_I2C in MPC8548CDS defconfigs

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/MPC8548CDS_36BIT_defconfig b/configs/MPC8548CDS_36BIT_defconfig
index 2203440..84ba942 100644
--- a/configs/MPC8548CDS_36BIT_defconfig
+++ b/configs/MPC8548CDS_36BIT_defconfig
@@ -45,3 +45,4 @@
 CONFIG_PCIE_FSL=y
 CONFIG_CONS_INDEX=2
 CONFIG_SYS_NS16550=y
+CONFIG_DM_I2C=y
diff --git a/configs/MPC8548CDS_defconfig b/configs/MPC8548CDS_defconfig
index b4ac4f1..2424875 100644
--- a/configs/MPC8548CDS_defconfig
+++ b/configs/MPC8548CDS_defconfig
@@ -44,3 +44,4 @@
 CONFIG_PCIE_FSL=y
 CONFIG_CONS_INDEX=2
 CONFIG_SYS_NS16550=y
+CONFIG_DM_I2C=y
diff --git a/configs/MPC8548CDS_legacy_defconfig b/configs/MPC8548CDS_legacy_defconfig
index 9b6f8be..43a1dff 100644
--- a/configs/MPC8548CDS_legacy_defconfig
+++ b/configs/MPC8548CDS_legacy_defconfig
@@ -44,3 +44,4 @@
 CONFIG_PCIE_FSL=y
 CONFIG_CONS_INDEX=2
 CONFIG_SYS_NS16550=y
+CONFIG_DM_I2C=y