The driver missed the default value of register 0xc320.
This patch adds that default value to avoid the error messages
when the driver went to suspend mode already.

BugLink: https://github.com/thesofproject/linux/issues/3651Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20220520090205.25857-1-shumingf@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>