drm/amdgpu/cz: silence some dpm debug output

Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/cz_dpm.c

@@ -1679,7 +1679,7 @@ static int cz_dpm_unforce_dpm_levels(struct amdgpu_device *adev)
 	if (ret)
 		return ret;
 
-	DRM_INFO("DPM unforce state min=%d, max=%d.\n",
+	DRM_DEBUG("DPM unforce state min=%d, max=%d.\n",
 		  pi->sclk_dpm.soft_min_clk,
 		  pi->sclk_dpm.soft_max_clk);