drm/amdgpu: add the VM pointer to the amdgpu_pte_update_params as well

This way we save passing it through the different functions.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>