mb/google/poppy/variants/rammus: Add support for rammus board

This change adds variant rammus derived from baseboard poppy.
The setting is copied from the poppy and will be modified later

BUG=b:111579386
BRANCH=master
TEST=emerge-rammus coreboot

Change-Id: I169c225e28183a7a93f1142a3bf87a60b26ce9ca
Signed-off-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-on: https://review.coreboot.org/27547
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2 files changed