ASoC: dt-bindings: audio-graph-port: Drop type from "clocks"

"clocks" is a standard property which already has a type. Users only need
to define how many clocks and what each clock is if more than 1 clock.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://msgid.link/r/20240124190808.1555263-1-robh@kernel.org


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