soc/pci_devs.h: Use consistent naming in soc/pci_devs.h

This patch to make common PCI device name between APL and SKL.

Change-Id: I5e4c7502e9678c0a367e9c7a96cf848d5b24f68e
Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com>
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/18576
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/intel/apollolake/pmutil.c

@@ -505,7 +505,7 @@ void pmc_gpe_init(void)
 	ROMSTAGE_CONST struct soc_intel_apollolake_config *config;
 
 	/* Look up the device in devicetree */
-	ROMSTAGE_CONST struct device *dev = dev_find_slot(0, NB_DEVFN);
+	ROMSTAGE_CONST struct device *dev = SA_DEV_ROOT;
 	if (!dev || !dev->chip_info) {
 		printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
 		return;