ASoC: cs35l36: Fix an error handling path in 'cs35l36_i2c_probe()'

If 'devm_regmap_init_i2c()' fails, there is no need to goto err. We should
return directly as already done by the surrounding error handling paths.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/9fec48e75bc1d3c92626e6f6aca2344bda223379.1618145790.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>