drm/amd/powerplay: add sclk sysfs interface support for navi10

miss sclk support in force_clk_levels function
Signed-off-by: Kevin Wang <kevin1.Wang@amd.com>
Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/navi10_ppt.c

@@ -648,6 +648,7 @@ static int navi10_force_clk_levels(struct smu_context *smu,
 
 	switch (clk_type) {
 	case SMU_GFXCLK:
+	case SMU_SCLK:
 	case SMU_SOCCLK:
 	case SMU_MCLK:
 	case SMU_UCLK: