Enums critical to xrt::bo sync behavior exist in deprecated header file

[wilderfield]

https://github.com/Xilinx/XRT/blob/ca535535e3052f4157d84512b0be47f31aad8abd/src/runtime_src/core/include/deprecated/xrt.h#L176-L181

Should we make new enums, since these are depracated?

XRT_BO_SYNC_BO_TO_DEVICE for example?

Or maybe xrt::bo::direction::to_device