`-Wsign-compare` on 32bit ARM

[jktjkt]

I started getting these two warnings:

libyang/src/path.c: In function ‘ly_path_check_predicate’:
libyang/src/path.c:158:58: warning: comparison of integer expressions of different signedness: ‘int’ and ‘uint32_t’ {aka ‘unsigned int’} [-Wsign-compare]
  158 |             if (!strtol(start, &end, 10) || (end - start != exp->tok_len[*tok_idx - 1])) {
      |                                                          ^~

libyang/src/plugins_types/date.c: In function ‘lyplg_type_store_date’:
libyang/src/plugins_types/date.c:150:42: warning: comparison of integer expressions of different signedness: ‘int’ and ‘uint32_t’ {aka ‘unsigned int’} [-Wsign-compare]
  150 |         if (!ptr || (ptr - (char *)value != value_size)) {
      |                                          ^~

[michalvasko]

Fine, should be fixed.