amdgpu/pp: move amdgpu_fuses_default into static const.

There is no reason that this gets passed back into the function
from outside the file, just reference the table directly.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>