ASoC: meson: axg-frddr: expose all 8 outputs

The FRDDR component, as it, has a maximum of 8 outputs. Depending on
the SoC, these may not all be connected.

Instead of decribing only the connected outputs of each SoC, describe
them all and let ASoC routing do the rest.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20190905120120.31752-4-jbrunet@baylibre.com


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