drm/amdgpu/vcn: update vcn4 fw shared data structure

update VF_RB_SETUP_FLAG, add SMU_DPM_INTERFACE_FLAG,
and corresponding change in VCN4.

Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Ruijing Dong <ruijing.dong@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>