mainboard/google/zoombini: Provide memory configuration variant API

Add support for memory configuration by providing weak implementation
from the baseboard. All SPD files are present under spd/
directory. SPD_SOURCES must be provided by the variants to ensure
that required SPD hex files are included in the SPD binary.

BUG=b:64395641
BRANCH=None
TEST=Verify "./util/abuild/abuild -p none -t google/zoombini -x -a"
compiles successfully.

Change-Id: I449ab56dfc7a75752944b58ba6291b5ee32f81ad
Signed-off-by: Nick Vaccaro <nvaccaro@chromium.org>
Reviewed-on: https://review.coreboot.org/22205
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

0 files changed, 0 insertions, 0 deletions