ASoC: fsl_micfil: Drop unnecessary register read

ASoC: fsl_micfil: Drop unnecessary register read

[ Upstream commit c808e277bcdfce37aed80a443be305ac1aec1623 ]

in get_pdm_clk() REG_MICFIL_CTRL2 is read twice. Drop second read.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-2-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 06df673d2023 ("ASoC: fsl_micfil: fix regmap_write_bits usage")
Signed-off-by: Sasha Levin <sashal@kernel.org>