[NPUW] Fixed oob in case of permute_021 int4 and num_channels > 1 (#32100)
### Details:
- regression on GPTQ model caused by PR:
https://github.com/openvinotoolkit/openvino/pull/30899
- also fixed compilation issue dueto msbuild: C2668 ambiguous fpclassify
invocation [this is optional]
### Tickets:
- E-143728
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Co-authored-by: Alexander Kalistratov <alexander.kalistratov@intel.com>