drm/amd/display: remove duplicate include in dcn201_clk_mgr.c

Remove all but the first include of reg_helper.h and core_types.h
from dcn201_clk_mgr.c.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c

@@ -30,8 +30,6 @@
 #include "dcn201_clk_mgr.h"
 #include "dcn20/dcn20_clk_mgr.h"
 #include "dce100/dce_clk_mgr.h"
-#include "reg_helper.h"
-#include "core_types.h"
 #include "dm_helpers.h"
 #include "dm_services.h"