dt-bindings: spi: add Amlogic A1 SPI controller

Add YAML devicetree Amlogic A1 (A113L SoC) SPIFC.

Signed-off-by: Martin Kurbanov <mmkurbanov@sberdevices.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230403183217.13280-2-mmkurbanov@sberdevices.ru


Signed-off-by: Mark Brown <broonie@kernel.org>