nb/intel/i945: Use common {DMI,EP,MCH}BAR accessors

Tested with BUILD_TIMELESS=1, Getac P470 remains identical.

Change-Id: If6d6cba76bdd1134372ab2faa475e574fdc5fddf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49756
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/northbridge/intel/i945/Kconfig b/src/northbridge/intel/i945/Kconfig
index 23369e7..484b694 100644
--- a/src/northbridge/intel/i945/Kconfig
+++ b/src/northbridge/intel/i945/Kconfig
@@ -80,4 +80,13 @@
 	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