ASoC: meson: tdmin: expose all 16 inputs

The TDMIN component, as it, has a maximum of 16 input. Depending on
the SoC, these may not all be connected.

Instead of decribing only the connected inputs 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/20190905120120.31752-6-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>