configs: ls1028a: Enable the Ethernet switch driver in defconfig

The switch driver for LS1028A Ethernet switch is now compiled in for
the NXP LS1028A reference design boards and for the Kontron SMARC-sAL28.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Michael Walle <michael@walle.cc>
diff --git a/configs/ls1028ardb_tfa_defconfig b/configs/ls1028ardb_tfa_defconfig
index 493fe7c..cff68a3 100644
--- a/configs/ls1028ardb_tfa_defconfig
+++ b/configs/ls1028ardb_tfa_defconfig
@@ -65,6 +65,9 @@
 CONFIG_PHY_GIGE=y
 CONFIG_E1000=y
 CONFIG_FSL_ENETC=y
+CONFIG_PHY_FIXED=y
+CONFIG_DM_DSA=y
+CONFIG_MSCC_FELIX_SWITCH=y
 CONFIG_NVME=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y