Fix HAL interface for hal_ni_minMaxIdx

[asmorkalov]

Fixes https://github.com/opencv/opencv/issues/25540

The original implementation call HAL with the same parameters independently from amount of channels. The patch uses HAL correctly for the case cn > 1.

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[mplatings]

This would also require a change at https://github.com/opencv/opencv/blob/4.x/modules/core/src/minmax.cpp#L1514 to pass type instead of depth