iio: adc: qcom-spmi-adc5: define ADC5_BAT_ID_100K_PU channel

Define the ADC channel used for battery identification purposes so it
can be used in drivers.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20230106-pm7250b-bat_id-v1-1-82ca8f2db741@fairphone.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/adc/qcom-spmi-adc5.c

@@ -543,6 +543,8 @@ static const struct adc5_channels adc5_chans_pmic[ADC5_MAX_CHANNEL] = {
 					SCALE_HW_CALIB_DEFAULT)
 	[ADC5_XO_THERM_100K_PU]	= ADC5_CHAN_TEMP("xo_therm", 0,
 					SCALE_HW_CALIB_XOTHERM)
+	[ADC5_BAT_ID_100K_PU]	= ADC5_CHAN_TEMP("bat_id", 0,
+					SCALE_HW_CALIB_DEFAULT)
 	[ADC5_AMUX_THM1_100K_PU] = ADC5_CHAN_TEMP("amux_thm1_100k_pu", 0,
 					SCALE_HW_CALIB_THERM_100K_PULLUP)
 	[ADC5_AMUX_THM2_100K_PU] = ADC5_CHAN_TEMP("amux_thm2_100k_pu", 0,