ASoC: codecs: tx-macro: move to individual clks from bulk

Using bulk clocks and referencing them individually using array index is
not great for readers.
So move them to individual clocks handling and also remove some unnecessary
error handling in the code.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220224111718.6264-6-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>