drm/radeon: Add missing lines to ci_set_thermal_temperature_range

Properly set the thermal min and max temp on CI.
Otherwise, we end up setting the thermal ranges
to 0 on resume and end up in the lowest power state.

Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org