This change adds a new CBMEM ID (CBMEM_ID_CB_EARLY_DRAM) that can be used by platform code to stash details of early DRAM used by coreboot. BUG=b:155322763 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I913c744fdce2f9c36afdc127b2668fccf57dde58 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42262 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>