nb/intel/x4x: Use common {DMI,EP,MCH}BAR accessors

Tested with BUILD_TIMELESS=1, Asus P5QL PRO does not change.

Change-Id: I33c17f56eac0277a12b32af777e2e1ceb086685f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49754
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/northbridge/intel/x4x/Kconfig b/src/northbridge/intel/x4x/Kconfig
index 711340d..99f6d79 100644
--- a/src/northbridge/intel/x4x/Kconfig
+++ b/src/northbridge/intel/x4x/Kconfig
@@ -37,4 +37,13 @@
 	int
 	default 4
 
+config FIXED_MCHBAR_MMIO_BASE
+	default 0xfed14000
+
+config FIXED_DMIBAR_MMIO_BASE
+	default 0xfed18000
+
+config FIXED_EPBAR_MMIO_BASE
+	default 0xfed19000
+
 endif