ASoC: amd: acp: remove unnecessary NULL check

The list iterator in a list_for_each_entry() loop can never be NULL.
Remove the check and pull the code in a tab.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/e376a712-e0c6-446f-9e0b-c444dd795cbb@moroto.mountain


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