… (#1)

* fix: NFC driver bounds check, integer truncation, and duplicate macro

- nfcmrvl: Add skb->len check before accessing skb->data[0]/[1]
- nfcmrvl: Fix unsigned char truncation of skb->len to unsigned int
- st21nfca: Remove duplicate ST21NFCA_NFC_DEP_PFB_IS_TIMEOUT macro

* test: add extended KUnit test suite for list_sort

Add comprehensive KUnit test suite covering edge cases: empty list,
single element, already sorted, reverse sorted, all-equal elements,
stability, descending sort, negative values, absolute value comparator,
zero comparator, large lists, random data, power-of-two lengths, and
boundary duplicates. Includes Kconfig and Makefile wiring.

Signed-off-by: Srikanth Patchava <spatchava@meta.com>

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Signed-off-by: Srikanth Patchava <spatchava@meta.com>