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/icelake/espi.c

@@ -48,7 +48,7 @@ const struct lpc_mmio_range *soc_get_fixed_mmio_ranges()
 
 void soc_get_gen_io_dec_range(const struct device *dev, uint32_t *gen_io_dec)
 {
-	const config_t *config = dev->chip_info;
+	const config_t *config = config_of(dev);
 
 	gen_io_dec[0] = config->gen1_dec;
 	gen_io_dec[1] = config->gen2_dec;