ASoC: Fix duplicate const warnings in da7210.c

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/da7210.c

@@ -240,7 +240,7 @@ static const DECLARE_TLV_DB_SCALE(adc_eq_master_gain_tlv, -1800, 600, 1);
 static const DECLARE_TLV_DB_SCALE(dac_gain_tlv, -7725, 75, 0);
 
 /* ADC and DAC high pass filter f0 value */
-static const char const *da7210_hpf_cutoff_txt[] = {
+static const char * const da7210_hpf_cutoff_txt[] = {
 	"Fs/8192*pi", "Fs/4096*pi", "Fs/2048*pi", "Fs/1024*pi"
 };
 
@@ -251,7 +251,7 @@ static const struct soc_enum da7210_adc_hpf_cutoff =
 	SOC_ENUM_SINGLE(DA7210_ADC_HPF, 0, 4, da7210_hpf_cutoff_txt);
 
 /* ADC and DAC voice (8kHz) high pass cutoff value */
-static const char const *da7210_vf_cutoff_txt[] = {
+static const char * const da7210_vf_cutoff_txt[] = {
 	"2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
 };