soc/intel/baytrail,braswell: Drop aliases on MMCONF_BASE_ADDRESS

Add MMCONF_BUS_NUMBER=256 to match previous allocation.

Change-Id: I01a86481e392a9347afdc2860b58617b20c4f05a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50663
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/soc/intel/baytrail/acpi.c

@@ -97,7 +97,7 @@ int acpi_sci_irq(void)
 unsigned long acpi_fill_mcfg(unsigned long current)
 {
 	current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current,
-					     MCFG_BASE_ADDRESS, 0, 0, 255);
+			CONFIG_MMCONF_BASE_ADDRESS, 0, 0, CONFIG_MMCONF_BUS_NUMBER - 1);
 	return current;
 }