nb/intel/x4x: Fix issues found by checkpatch.pl

Change-Id: Ie22b8bd5420f8c33df1866410af42ef41ad38362
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18694
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/northbridge/intel/x4x/bootblock.c

@@ -26,5 +26,5 @@ static void bootblock_northbridge_init(void)
 	reg32 = TPM32(0);
 
 	reg32 = CONFIG_MMCONF_BASE_ADDRESS | 16 | 1;
-	pci_io_write_config32(PCI_DEV(0,0,0), D0F0_PCIEXBAR_LO, reg32);
+	pci_io_write_config32(PCI_DEV(0, 0, 0), D0F0_PCIEXBAR_LO, reg32);
 }