add openvino to the continuation supported list (microsoft#1525)

Author: RyanMetcalfeInt8

src/generators.cpp

@@ -363,7 +363,7 @@ void Generator::AppendTokens(cpu_span<const int32_t> input_ids) {
   if (search_->GetSequenceLength() != 0 && state_->params_->search.batch_size > 1)
     throw std::runtime_error("AppendTokens can only be called once for batch_size > 1. To call AppendTokens again, use RewindToLength(0)");
 
-  constexpr std::array<DeviceType, 3> devices_supporting_continuous_decoding{DeviceType::CPU, DeviceType::CUDA, DeviceType::WEBGPU};
+  constexpr std::array<DeviceType, 4> devices_supporting_continuous_decoding{DeviceType::CPU, DeviceType::CUDA, DeviceType::WEBGPU, DeviceType::OpenVINO};
   if (search_->GetSequenceLength() != 0 &&
       std::none_of(devices_supporting_continuous_decoding.begin(), devices_supporting_continuous_decoding.end(),
                    [this](DeviceType device_type) { return device_type == state_->model_.p_device_kvcache_->GetType(); }))