get_board_sku to smm stage.
fix Power_off section power sequence.
power_off_lte_module() should run in smm stage, add variant.c in smm stage.
also move get_board_sku() to mainboard_misc.c so that we can use it in smm stage
and ramstage.
BUG=b:144327240
BRANCH=octopus
TEST=build image and verify on the DUT with LTE DB.
Change-Id: I287ba1cb092a95b3a9dd1f960a3b84fd85b9b221
Signed-off-by: Pan Sheng-Liang <sheng-liang.pan@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37649
Reviewed-by: Marco Chen <marcochen@google.com>
Reviewed-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>