drm/amdgpu: Enable translate_further to extend UTCL2 reach

Enable translate_further on Arcturus and Aldebaran server chips
in order to increase the UTCL2 reach from 8 GiB to 64 GiB,
which is more in line with the amount of framebuffer DRAM in
the devices.

Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Kent Russell <kent.russell@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>