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/apollolake/lpc.c

@@ -91,12 +91,7 @@ void lpc_configure_pads(void)
 void lpc_soc_init(struct device *dev)
 {
 	const struct soc_intel_apollolake_config *cfg;
-
-	cfg = dev->chip_info;
-	if (!cfg) {
-		printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
-		return;
-	}
+	cfg = config_of(dev);
 
 	/* Set LPC Serial IRQ mode */
 	lpc_set_serirq_mode(cfg->serirq_mode);