drm/amdgpu/amdkfd: clean up mmhub and gfxhub includes

Use the appropriate mmhub and gfxhub headers rather than adding
them to the gmc9 header.

Reviewed-by: Felix Kuehling <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c

···
 #include "v9_structs.h"
 #include "soc15.h"
 #include "soc15d.h"
-#include "gmc_v9_0.h"
+#include "mmhub_v1_0.h"
+#include "gfxhub_v1_0.h"
 
 
 #define V9_PIPE_PER_MEC		(4)

drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h

···
 					  bool value);
 void gfxhub_v1_0_init(struct amdgpu_device *adev);
 u64 gfxhub_v1_0_get_mc_fb_offset(struct amdgpu_device *adev);
+void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
+				uint64_t page_table_base);
 
 #endif

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h

···
 extern const struct amd_ip_funcs gmc_v9_0_ip_funcs;
 extern const struct amdgpu_ip_block_version gmc_v9_0_ip_block;
 
-/* amdgpu_amdkfd*.c */
-void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
-				uint64_t page_table_base);
-void mmhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
-				uint64_t page_table_base);
-
 #endif

drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.h

···
 void mmhub_v1_0_get_clockgating(struct amdgpu_device *adev, u32 *flags);
 void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev,
                                 bool enable);
+void mmhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
+				uint64_t page_table_base);
 
 #endif