ASoC: tas2781: Fix error code in tas2781_load_calibration()

Return -EINVAL instead of success on this error path.

Fixes: 915f5ead ("ASoC: tas2781: firmware lib")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/Message-Id

: <729bb6b3-bc1d-4b3d-8b65-077a492c753c@moroto.mountain>
Signed-off-by: Mark Brown <broonie@kernel.org>