configs: lx2160a: enable CONFIG_OF_BOARD_FIXUP for SECURE_BOOT defconfig

lx2160a rev1 and rev2 SoC has different pcie controller.
The pcie controller device tree node fields "compatible"
and registers names needs to be updated accordingly.

Enable CONFIG_OF_BOARD_FIXUP to apply board_fix_fdt
which updates the "compatible" and registers names.

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig b/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig
index 02abfc4..01a356f 100644
--- a/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig
+++ b/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig
@@ -28,6 +28,7 @@
 CONFIG_CMD_CACHE=y
 CONFIG_MP=y
 CONFIG_OF_CONTROL=y
+CONFIG_OF_BOARD_FIXUP=y
 CONFIG_DEFAULT_DEVICE_TREE="fsl-lx2160a-rdb"
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_DM=y