ASoC: wm2200: remove include of wmfw.h

We want all wm_adsp clients to use the wm_adsp.h header as they
shouldn't need to include internal sub-headers.

Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210511171514.270219-1-simont@opensource.cirrus.com


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