xdp_intr.c is missing a few function definitions in the header

[PCrabbeIMMT]

The following functions are missing inside of xdp.h

void XDp_RxInterruptEnable1(XDp *InstancePtr, u32 Mask) https://github.com/Xilinx/embeddedsw/blob/master/XilinxProcessorIPLib/drivers/dp14/src/xdp_intr.c#L194

void XDp_RxInterruptDisable1(XDp *InstancePtr, u32 Mask) https://github.com/Xilinx/embeddedsw/blob/master/XilinxProcessorIPLib/drivers/dp14/src/xdp_intr.c#L223

It looks like these should be declared, as they are used in the displayport examples, but wont compile in C++