linux-imx

ASoC: sgtl5000: Cleanup the comments

Fix grammar and typos.

Besides that, also fix the comment about the range of SYS_MCLK, which is from
8 to 27 MHz.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>