[coreboot-gerrit] Patch merged into coreboot/master: device/dram: use global DIMM_SPD_SIZE Kconfig variable

the following patch was just integrated into master:
commit 44a46a1f041ad7101cfe3c2dcb94b1406bd4246b
Author: Patrick Georgi 
Date:   Sat Jan 28 13:12:09 2017 +0100

device/dram: use global DIMM_SPD_SIZE Kconfig variable

Also make sure that no board changes behaviour because of that by adding
    a static assert.

TEST=abuild over all builds still succeeds (where it doesn't if
    DIMM_SPD_SIZE isn't set to 128 bytes for boards that use the
    device/dram code).

Change-Id: Iddb962b16857ee859ddcf1b52d18da9b3be56449
    Signed-off-by: Patrick Georgi 
    Reviewed-on: https://review.coreboot.org/18254
    Reviewed-by: Aaron Durbin 
    Tested-by: build bot (Jenkins)

See https://review.coreboot.org/18254 for details.

-gerrit