Add sealers to mining benchmark

ethminer/MinerAux.h

@@ -398,6 +398,12 @@ private:
 		cdebug << genesis.boundary();
 
 		GenericFarm<EthashProofOfWork> f;
+		map<string, GenericFarm<EthashProofOfWork>::SealerDescriptor> sealers;
+		sealers["cpu"] = GenericFarm<EthashProofOfWork>::SealerDescriptor{&EthashCPUMiner::instances, [](GenericMiner<EthashProofOfWork>::ConstructionInfo ci){ return new EthashCPUMiner(ci); }};
+#if ETH_ETHASHCL
+		sealers["opencl"] = GenericFarm<EthashProofOfWork>::SealerDescriptor{&EthashGPUMiner::instances, [](GenericMiner<EthashProofOfWork>::ConstructionInfo ci){ return new EthashGPUMiner(ci); }};
+#endif
+		f.setSealers(sealers);
 		f.onSolutionFound([&](EthashProofOfWork::Solution) { return false; });
 
 		string platformInfo = _m == MinerType::CPU ? "CPU" : "GPU";//EthashProofOfWork::CPUMiner::platformInfo() : _m == MinerType::GPU ? EthashProofOfWork::GPUMiner::platformInfo() : "";