ggml-hexagon: fix swiglu failure at `test-backend-ops` (#17344)
* refactor: use hvx_vec_exp_fp32_guard_inf for overflow handling in hvx_exp_f32
* feat: add fast sigmoid function with overflow guard for fp32
* refactor: replace hvx_vec_inverse_fp32 with hvx_vec_inverse_fp32_guard_inf for improved overflow handling
* feat: enhance hvx_add_scalar_f32 with overflow handling using infinity guard
* wip
* add HVX_Vector_Alias
wip
* wip
* fix: improve handling of src1 tensor in glu_swiglu_fp32_per_thread function
* fix nc
* wip
* wip
* handle nan at inverse
* wip
* fix neg
* wip
* rename
* fix hvx_vec_inverse_fp32_guard_inf to handle infinity and NaN cases correctly
* wip
* fix hvx_vec_inverse_fp32_guard_inf to handle NaN cases correctly
* wip
* wip
* wip
* fix output sign