ASoC: fsi: fix spelling mistake

Fix "thse" --> "these" in struct fsi_stream declaration.

Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Link: https://lore.kernel.org/r/20210618085324.1038524-1-f.suligoi@asem.it


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