configs: lx2160a: Enable CONFIG_PCIE_LAYERSCAPE_GEN4

LX2160A-Rev1 uses PCIe layerscape Gen4 controller.
Enable CONFIG_PCIE_LAYERSCAPE_GEN4 for lx2160a.

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
5 files changed