drm/amdgpu: add a df 1.7 implementation of enable_ecc_force_par_wr_rmw

Needed for proper memory setup depending on whether ECC is
enabled on a particular board.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed