hexagon: tiling, tracing and optimizations for unary ops (#25474)
* hexagon: tile wide rows in pointwise unary ops to avoid VTCM overflow
* unary: reject permuted tensors for now (not used by models)
* hex-unary: replace divs with fastdiv
* hex-unary: add vtcm layout and host computed kernel params
* hex-unary: move fastdiv init into kernel params
* hex-unary: add specialized thread functions to improve generated code
* hex-unary: tracing instrumentation for unary ops
* hex-unary: factor out hvx kernels, streamline and remove more duplication
* ggml-hexagon: fix std::min collision with Windows min macro
* hex-cmake: make lto build happy
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Co-authored-by: Max Krasnyansky <maxk@qti.qualcomm.com>