ASoC: amd: vangogh: remove unnecessarily included headers

Remove unused includes and replace <linux/input.h> by
<linux/input-event-codes.h>

Signed-off-by: Lucas Tanure <lucas.tanure@collabora.com>
Link: https://lore.kernel.org/r/20230217110850.1045250-5-lucas.tanure@collabora.com


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