ASoC: cs35l56: Fix illegal use of init_completion()

Fix cs35l56_patch() to call reinit_completion() to reinitialize
the completion object.

It was incorrectly using init_completion().

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: e4961125

 ("ASoC: cs35l56: Add driver for Cirrus Logic CS35L56")
Link: https://lore.kernel.org/r/20231006164405.253796-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>