ASoC: sprd: Simplify memory allocation in sprd_platform_compr_dma_config()

'sg' is freed at the end sprd_platform_compr_dma_config() both in the
normal and in the error handling path.

There is no need to use the devm_kcalloc()/devm_kfree(), kcalloc()/kfree()
is enough.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://msgid.link/r/d16f22ae0627249a9fc658927832590cd88c544e.1702960856.git.christophe.jaillet@wanadoo.fr


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