nb/intel/i945: Fix errors found by checkpatch.pl

Change-Id: Ic2dd40e73d4a4c091c5ce1f49bbf9ab4d013d7af
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18704
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

src/northbridge/intel/i945/bootblock.c

@@ -20,5 +20,5 @@ static void bootblock_northbridge_init(void)
 	 * 4GiB.
 	 */
 	reg = CONFIG_MMCONF_BASE_ADDRESS | 4 | 1; /* 64MiB - 0-63 buses. */
-	pci_io_write_config32(PCI_DEV(0,0,0), PCIEXBAR, reg);
+	pci_io_write_config32(PCI_DEV(0, 0, 0), PCIEXBAR, reg);
 }