linux-phytec-ti

ASoC: Handle low measured DC offsets for wm_hubs devices

The DC servo codes are actually signed numbers so need to be treated as
such.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: stable@kernel.org