drm/amd/display: populate last calculated bb state with max clocks

[why]
update_bounding_box calculates intermediate bb states based on clock relationship
however, the last state doesn't need to maintain a minimum relationship, but should
actually contain maximum of every clock.  otherwise maximum clocks are not usable

[how]
once the calculated bb is built, override the last state with max values
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

@@ -2751,6 +2751,10 @@ static void update_bounding_box(struct dc *dc, struct _vcs_dpi_soc_bounding_box_
 		num_calculated_states++;
 	}
 
+	calculated_states[num_calculated_states - 1].socclk_mhz = max_clocks->socClockInKhz / 1000;
+	calculated_states[num_calculated_states - 1].fabricclk_mhz = max_clocks->socClockInKhz / 1000;
+	calculated_states[num_calculated_states - 1].dcfclk_mhz = max_clocks->dcfClockInKhz / 1000;
+
 	memcpy(bb->clock_limits, calculated_states, sizeof(bb->clock_limits));
 	bb->num_states = num_calculated_states;