Fix gfx950 gating conditions to match ROCm 7.0.2 (#2003)

src/init.cc

@@ -1410,7 +1410,7 @@ static ncclResult_t initTransportsRank(struct ncclComm* comm, struct ncclComm* p
       comm -> gfx9CheapFenceOff = 0;
     }
     else if(IsArchMatch(comm->topo->nodes[GPU].nodes[idx].gpu.gcn, "gfx950")){
-      comm -> gfx9CheapFenceOff = ROCM_VERSION < 70200 && nNodes > 1; // Enable for single node only prior to ROCm 7.0.2
+      comm -> gfx9CheapFenceOff = ROCM_VERSION < 70002 && nNodes > 1; // Enable for single node only prior to ROCm 7.0.2
     }
   }
   INFO(NCCL_INIT, "GFX9 cheap fence is %s", comm -> gfx9CheapFenceOff ? "OFF" : "ON");