drm/amdgpu: Remove duplicate amdgpu_umsch_mm.h header

./drivers/gpu/drm/amd/amdgpu/amdgpu.h: amdgpu_umsch_mm.h is included more than once.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9063Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -112,7 +112,6 @@
 #include "amdgpu_xcp.h"
 #include "amdgpu_seq64.h"
 #include "amdgpu_reg_state.h"
-#include "amdgpu_umsch_mm.h"
 
 #define MAX_GPU_INSTANCE		64