This CL indroduces the ELOG_RW_REGION_NAME. This constant replaced the hardcoded "RW_ELOG" value. This constant will be used also by elogtool (see CL in the commit chain). BUG=b:172210863 Change-Id: Ie8d31204e65fd67d52b0f8ced7b8c1ffdcf5b539 Signed-off-by: Ricardo Quesada <ricardoq@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/56986 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>