set the fan1_enable hwmon interface to call
smu_get_fan_control_mode and smu_set_fan_control_mode.

v2: fix print value.
Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>