Change in coreboot[master]: lib: Treat dimm addr_map 0 as not exist

[Eric Lai (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Ivy Jian, Eric Lai.
Hello Frank Wu, build bot (Jenkins), Subrata Banik, Tim Wawrzynczak, Ivy Jian,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/63628

to look at the new patch set (#2).

Change subject: lib: Treat dimm addr_map 0 as not exist
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lib: Treat dimm addr_map 0 as not exist

Treat dimm addr_map 0 as not exist. addr_map default is 0, we don't set
it if there no HW exist.

BUG=b:213964936
BRANCH=firmware-brya-14505.B
TEST=emerge-brya coreboot chromeos-bootimage
The MRC training does not be performed again after rebooting.

Signed-off-by: Eric Lai 
Change-Id: I2ada0109eb0805174cb85d4ce373e2a3ab7dbcac
---
M src/lib/spd_cache.c
M tests/lib/spd_cache-test.c
2 files changed, 9 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/28/63628/2