nb/intel/x4x: Change signature of `decode_pciebar`

Rename it and make it return an int, like other northbridges do.

Change-Id: I8bbf28350976547c83e039731d316e0911197d54
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44141
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/northbridge/intel/x4x/northbridge.c b/src/northbridge/intel/x4x/northbridge.c
index 9c32dae..99b1f21 100644
--- a/src/northbridge/intel/x4x/northbridge.c
+++ b/src/northbridge/intel/x4x/northbridge.c
@@ -111,7 +111,7 @@
 				top32memk - (DEFAULT_HECIBAR >> 10),
 				IORESOURCE_RESERVE);
 
-	if (decode_pciebar(&pcie_config_base, &pcie_config_size)) {
+	if (decode_pcie_bar(&pcie_config_base, &pcie_config_size)) {
 		printk(BIOS_DEBUG, "Adding PCIe config bar base=0x%08x "
 		       "size=0x%x\n", pcie_config_base, pcie_config_size);
 		fixed_mem_resource(dev, index++, pcie_config_base >> 10,