mb/google/poppy: Clear memory_params before initializing them

Make sure that fields that are not updated in
variant_memory_params keep a default value of 0.

In particular, use_sec_spd is intended to have a default value of
0 on all platforms. Without this patch, a random value is used
and all boards (except nami) get stuck on boot.

TEST=Nautilus and poppy can boot, and do not get stuck at
     "CBFS: 'sec-spd.bin' not found."

Change-Id: I06c6511625de930903ae13788bdcd27667a17886
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://review.coreboot.org/25101
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed