soc/intel: Use config_of()

Change-Id: I0727a6b327410197cf32f598d1312737744386b3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34328
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: David Guckian

src/soc/intel/braswell/lpss.c

@@ -139,7 +139,7 @@ static void i2c_disable_resets(struct device *dev)
 
 static void lpss_init(struct device *dev)
 {
-	struct soc_intel_braswell_config *config = dev->chip_info;
+	struct soc_intel_braswell_config *config = config_of(dev);
 	int iosf_reg, nvs_index;
 
 	printk(BIOS_SPEW, "%s/%s (%s)\n",