reset: dt-bindings: meson: update arb bindings for sm1

SM1 SoC family adds two new audio FIFOs with the related arb reset lines

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>