drm/amdgpu/navi10: add mclk to navi10_get_clock_by_type_with_latency

Doesn't seem to be used, but add it just in case.
Reviewed-by: Matt Coffin <mcoffin13@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -949,6 +949,8 @@ static int navi10_get_clock_by_type_with_latency(struct smu_context *smu,
 	case SMU_GFXCLK:
 	case SMU_DCEFCLK:
 	case SMU_SOCCLK:
+	case SMU_MCLK:
+	case SMU_UCLK:
 		ret = smu_get_dpm_level_count(smu, clk_type, &level_count);
 		if (ret)
 			return ret;