bad case won't follow normal sense, it will not enable vga1 as usual, but vga2,3,4 is on.
Signed-off-by: NClark Zheng <clark.zheng@amd.com>
Reviewed-by: NTony Cheng <tony.cheng@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>