ASoC: fsl_micfil: Drop unnecessary register read

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

sound/soc/fsl/fsl_micfil.c

@@ -118,8 +118,6 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil,
 	regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg);
 	osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK)
 		    >> MICFIL_CTRL2_CICOSR_SHIFT);
-
-	regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg);
 	qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK;
 
 	switch (qsel) {