iio: adc: adrv902x: Fix memory leak (AGC settings)

Fix memory leak for phy->agcConfig by using devm_kzalloc for
allocating memory instead of kzalloc.

Fixes: 43f0025 ("drivers: iio: adc: madura: adrv9025.c: AGC settings")
Signed-off-by: George Mois <george.mois@analog.com>

Author: danmois

drivers/iio/adc/adrv902x/adrv9025.c

@@ -3293,7 +3293,7 @@ static int adrv9025_probe(struct spi_device *spi)
 	phy->spi_device_id = id;
 	phy->dev_clk = clk;
 	phy->jdev = jdev;
-	phy->agcConfig = kzalloc(sizeof(adi_adrv9025_AgcCfg_t), GFP_KERNEL);
+	phy->agcConfig = devm_kzalloc(&spi->dev, sizeof(adi_adrv9025_AgcCfg_t), GFP_KERNEL);
 	if (!(phy->agcConfig))
 		return -ENOMEM;
 	phy->dpdModelConfig = devm_kzalloc(&spi->dev, sizeof(adi_adrv9025_DpdModelConfig_v2_t), GFP_KERNEL);