drm/amd/powerplay: implement dpm enable functions of uvd & vce for smu

add function of dpm enable uvd & vce for extern module use.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -698,5 +698,5 @@ extern int smu_display_configuration_change(struct smu_context *smu, const
 					    *display_config);
 extern int smu_get_current_clocks(struct smu_context *smu,
 				  struct amd_pp_clock_info *clocks);
-
+extern int smu_dpm_set_power_gate(struct smu_context *smu,uint32_t block_type, bool gate);
 #endif