Fix typo in sycl implementation

Author: sbaldu

include/alpaka/dev/DevGenericSycl.hpp

@@ -244,9 +244,9 @@ namespace alpaka
             {
                 {
                     std::lock_guard<std::mutex> lock(*dev.m_mutex);
-                    if(dev.m_deviceProperties->preferredWarpSize.has_value())
+                    if(dev.m_deviceProperties->warpSizes.has_value())
                     {
-                        return dev.m_deviceProperties->preferredWarpSize.value().front();
+                        return dev.m_deviceProperties->warpSizes.value().front();
                     }
                 }
                 return GetWarpSizes<DevGenericSycl<TTag>>::getWarpSizes(dev).front();

include/alpaka/dev/DevUniformCudaHipRt.hpp

@@ -67,6 +67,7 @@ namespace alpaka
         DevUniformCudaHipRt()
             : m_QueueRegistry{std::make_shared<alpaka::detail::QueueRegistry<IDeviceQueue>>()}
             , m_deviceProperties{std::make_shared<alpaka::DeviceProperties>()}
+            , m_mutex(std::make_shared<std::mutex>())
         {
         }