verdin-imx8mm: spl: enable pca9450 i2c level translator

Enable PCA9450 i2c level translator, as this is used for the
on module ADC.
Signed-off-by: NMax Krummenacher <max.krummenacher@toradex.com>
Acked-by: NMarcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: NOleksandr Suvorov <oleksandr.suvorov@toradex.com>

board/toradex/verdin-imx8mm/spl.c

@@ -124,6 +124,8 @@ int power_init_board(void)
 		/* set WDOG_B_CFG to cold reset */
 		pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
 
+		pmic_reg_write(dev, PCA9450_CONFIG2, 0x1);
+
 		return 0;
 	}