armv8: layerscape: move CONFIG_LAYERSCAPE to Kconfig

Moves CONFIG_LAYERSCAPE for all NXP Layerscape platforms.

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
7 files changed