dts: synquacer: Drop unused and undocumented SPI properties

'active_clk_edges' and 'chipselect_num' SPI controller properties are
unused in u-boot and Linux. They are also not documented in the binding.
So drop them.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
1 file changed