IntelPython / dpnp / 16244763918

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reverse the order of individual FFTs in rfftn (#2524)

For `numpy.fft.fftn` and `numpy.fft.ifftn`, individual FFTs over `axes`
are performed in [reverse
order](https://github.com/numpy/numpy/blob/v2.2.0/numpy/fft/_pocketfft.py#L739).

Similarly, for `numpy.fft.rfftn`, individual FFTs are performed in
[reverse
order](https://github.com/numpy/numpy/blob/v2.2.0/numpy/fft/_pocketfft.py#L1382).

However, for `numpy.fft.irfftn` individual FFTs are performed in
[forward
order](https://github.com/numpy/numpy/blob/v2.2.0/numpy/fft/_pocketfft.py#L1600).

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