Update fpga_kernel_properties.hpp header

Author: aejjehint

sycl/include/sycl/ext/intel/experimental/fpga_kernel_properties.hpp

@@ -18,12 +18,12 @@ namespace ext::intel::experimental {
 
 template <typename T, typename PropertyListT> class fpga_kernel_attribute;
 
-enum class streaming_interface_options_enum : std::uint16_t {
+enum class streaming_interface_options_enum : uint16_t {
   accept_downstream_stall,
   remove_downstream_stall
 };
 
-enum class register_map_interface_options_enum : std::uint16_t {
+enum class register_map_interface_options_enum : uint16_t {
   do_not_wait_for_done_write,
   wait_for_done_write,
 };