ASoC: SOF: Add missing dependency on IMX_SCU

This broke PowerPC allyesconfig.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20200423142805.52757-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed