northbridge/nehalem: add MCHBAR AND/OR/AND_OR macros

The newly added macros are used for cleaning up the RAM initializatiion code.

Change-Id: I3d3782ee1fa524cf69b63ccc7eb73e9a2ace84ec
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/27705
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
1 file changed