drm/amdgpu: Add SMU v13.0.6 default reset methods

For APUs with SMU v13.0.6, mode-2 reset is kept as default and for
others mode-1 is the default reset method.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Tested-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>