ASoC: wm_adsp: Add missing MODULE_DESCRIPTION()

wm_adsp is built as a separate module and as such should include a
MODULE_DESCRIPTION() macro.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://msgid.link/r/20240527100237.430240-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm_adsp.c

@@ -2085,5 +2085,6 @@ static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
 	.watchdog_expired = wm_adsp_fatal_error,
 };
 
+MODULE_DESCRIPTION("Cirrus Logic ASoC DSP Support");
 MODULE_LICENSE("GPL v2");
 MODULE_IMPORT_NS(FW_CS_DSP);