ASoC: rt712-sdca: fix speaker route missing issue

Sometimes the codec probe would be called earlier than the hardware initialization.
Therefore, the speaker route should be added before the the first_hw_init check.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Fixes: f3da2ed1 ("ASoC: rt1712-sdca: enable pm_runtime in probe,  keep status as 'suspended'")?
Link: https://lore.kernel.org/r/20231030103644.1787948-1-shumingf@realtek.com


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