pe-binary: fix missing le16toh() on NumberOfSections in pe_hash/uki_hash

pe-binary: fix missing le16toh() on NumberOfSections in pe_hash/uki_hash

pe_hash() and uki_hash() pass pe_header->pe.NumberOfSections directly
to typesafe_qsort() and FOREACH_ARRAY() without le16toh(). On
big-endian (s390x), NumberOfSections=3 gets read as 0x0300 (768),
while pe_load_sections() correctly converts it and only allocates 3
sections. This makes qsort process 768 elements on a 3-element
buffer, causing a heap-buffer-overflow (confirmed with ASAN on
native s390x).

Wrap all three raw usages with le16toh() to match pe_load_sections().