This patch renames the smum header guards to align with the file name.
Reported-by: NEdward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Reviewed-by: NKen Wang <Qingqing.Wang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>