ASoC: q6afe-clocks: Fix typo in SPDX Licence

Looks like there was a major typo in SPDX Licence version,
Not sure how it was missed.
This patch is to fix it.

Reported-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200926171844.7792-1-srinivas.kandagatla@linaro.org


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