Add support to SPI controller on Intel Atom based Lightning Mountain
SoC which reuses the Lantiq SPI controller IP.
Signed-off-by: NDilip Kota <eswara.kota@linux.intel.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/7d644e5d03ef534f719763e5c823c1673e53d1a5.1594957019.git.eswara.kota@linux.intel.comSigned-off-by: NMark Brown <broonie@kernel.org>