ASoC: fsl: constify snd_soc_ops structures

Declare snd_soc_ops structures as const as they are only stored
in the ops field of a snd_soc_dai_link structure. This field is
of type const, so snd_soc_ops structures having this property
can be made const too.

The following .o files did not compile:
sound/soc/fsl/{p1022_rdk.c/p1022_ds.c/mpc8610_hpcd.c}

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/imx-mc13783.c

@@ -48,7 +48,7 @@ static int imx_mc13783_hifi_hw_params(struct snd_pcm_substream *substream,
 	return snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 16);
 }
 
-static struct snd_soc_ops imx_mc13783_hifi_ops = {
+static const struct snd_soc_ops imx_mc13783_hifi_ops = {
 	.hw_params = imx_mc13783_hifi_hw_params,
 };