drm/amdgpu/dpm: add an implementation for get_vce_clock_state (v2)

Used by the non-powerplay dpm code.

v2: update to the new API

Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index fa939df..3f89107 100644
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -6644,6 +6644,7 @@ static const struct amdgpu_dpm_funcs ci_dpm_funcs = {
 	.set_sclk_od = ci_dpm_set_sclk_od,
 	.get_mclk_od = ci_dpm_get_mclk_od,
 	.set_mclk_od = ci_dpm_set_mclk_od,
+	.get_vce_clock_state = amdgpu_get_vce_clock_state,
 };
 
 static void ci_dpm_set_dpm_funcs(struct amdgpu_device *adev)