drm/amdgpu/vi: add need_reset_on_init asic callback for VI (v2)

VI chips require a reset if the driver was previously loaded
because the SMU can only be loaded once between each reset.

v2: rebase

Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>