ASoC: fsl_micfil: Fix indentation to put on one line affected code

In the function fsl_micfil_startup(), the two lines of dev_err()
can be shortened to one line.

Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20200518105951.19200-1-tangbin@cmss.chinamobile.com


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