iio: adc: qcom-spmi-adc5: Add ADC5_GPIO2_100K_PU

Even though it existed in bindings for the longest time,
ADC5_GPIO2_100K_PU was never assigned in the driver. Do so.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230627-topic-adc-v1-1-c61581abffa3@linaro.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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

@@ -555,6 +555,8 @@ static const struct adc5_channels adc5_chans_pmic[ADC5_MAX_CHANNEL] = {
 					SCALE_HW_CALIB_PM5_SMB_TEMP)
 	[ADC5_GPIO1_100K_PU]	= ADC5_CHAN_TEMP("gpio1_100k_pu", 0,
 					SCALE_HW_CALIB_THERM_100K_PULLUP)
+	[ADC5_GPIO2_100K_PU]	= ADC5_CHAN_TEMP("gpio2_100k_pu", 0,
+					SCALE_HW_CALIB_THERM_100K_PULLUP)
 	[ADC5_GPIO3_100K_PU]	= ADC5_CHAN_TEMP("gpio3_100k_pu", 0,
 					SCALE_HW_CALIB_THERM_100K_PULLUP)
 	[ADC5_GPIO4_100K_PU]	= ADC5_CHAN_TEMP("gpio4_100k_pu", 0,