drm/amdgpu: Clean up errors in amdgpu_trace.h

Fix the following errors reported by checkpatch:

ERROR: space required after that ',' (ctx:VxV)
ERROR: "foo* bar" should be "foo *bar"
Signed-off-by: Ran Sun <sunran001@208suo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -432,7 +432,7 @@ TRACE_EVENT(amdgpu_vm_flush,
 			   ),
 	    TP_printk("ring=%s, id=%u, hub=%u, pd_addr=%010Lx",
 		      __get_str(ring), __entry->vmid,
-		      __entry->vm_hub,__entry->pd_addr)
+		      __entry->vm_hub, __entry->pd_addr)
 );
 
 DECLARE_EVENT_CLASS(amdgpu_pasid,
@@ -494,7 +494,7 @@ TRACE_EVENT(amdgpu_cs_bo_status,
 );
 
 TRACE_EVENT(amdgpu_bo_move,
-	    TP_PROTO(struct amdgpu_bo* bo, uint32_t new_placement, uint32_t old_placement),
+	    TP_PROTO(struct amdgpu_bo *bo, uint32_t new_placement, uint32_t old_placement),
 	    TP_ARGS(bo, new_placement, old_placement),
 	    TP_STRUCT__entry(
 			__field(struct amdgpu_bo *, bo)