sandybridge/raminit_common: use MCHBAR AND/OR/AND_OR macros [1/2]

When using timeless builds and coreboot crossgcc 6.3.0, the checksum of the
resulting binary doesn't change with applying this commit.

Change-Id: I2b1dc8befa3381f3edac06704e31e7ef50f86fa4
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/27724
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed