nb/intel/sandybridge: Clean up `dram_mr2` function

Constify variables, and also remove pointless and-masks on mr2reg.

Tested on Asus P8H61-M PRO, still boots.

Change-Id: I3829012ff7d41f4308ee84d6fbf3b1f2803431af
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47569
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

0 files changed, 0 insertions, 0 deletions