drm/amdgpu/dpm: add new callback to fetch vce clock state (v2)

	int (*set_sclk_od)(struct amdgpu_device *adev, uint32_t value);

	int (*get_mclk_od)(struct amdgpu_device *adev);

	int (*set_mclk_od)(struct amdgpu_device *adev, uint32_t value);

	struct amd_vce_state* (*get_vce_clock_state)(struct amdgpu_device *adev, unsigned idx);

};

#define amdgpu_dpm_pre_set_power_state(adev) (adev)->pm.funcs->pre_set_power_state((adev))

#define amdgpu_dpm_dispatch_task(adev, event_id, input, output)		\

	(adev)->powerplay.pp_funcs->dispatch_tasks((adev)->powerplay.pp_handle, (event_id), (input), (output))

#define amdgpu_dpm_get_vce_clock_state(adev, i)				\

	((adev)->pp_enabled ?						\

	 (adev)->powerplay.pp_funcs->get_vce_clock_state((adev)->powerplay.pp_handle, (i)) : \

	 (adev)->pm.funcs->get_vce_clock_state((adev), (i)))

struct amdgpu_dpm {

	struct amdgpu_ps        *ps;

	int (*get_mclk_od)(void *handle);

	int (*set_mclk_od)(void *handle, uint32_t value);

	int (*read_sensor)(void *handle, int idx, int32_t *value);

	struct amd_vce_state* (*get_vce_clock_state)(void *handle, unsigned idx);

};

struct amd_powerplay {