device: Use pcidev_on_root()

Change-Id: Icf34b39d80f6e46d32a39b68f38fb2752c0bcebc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/26484
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Piotr Król <piotr.krol@3mdeb.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/southbridge/intel/lynxpoint/elog.c

@@ -112,7 +112,7 @@ void pch_log_state(void)
 {
 	u16 pm1_sts, gen_pmcon_3, tco2_sts;
 	u8 gen_pmcon_2;
-	struct device *lpc = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
+	struct device *lpc = pcidev_on_root(0x1f, 0);
 	if (!lpc)
 		return;