stage_cache: Add more empty stubs functions

Added for symmetry with other stage_cache_add()
command variants, currently for amd/stoneyridge.

Change-Id: I580054104a61f1b03ba36a7c97ad4411c3d29855
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34651
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions