sort-utils: add generic uint16_t comparison call

src/basic/sort-util.c

@@ -31,3 +31,7 @@ void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
 int cmp_int(const int *a, const int *b) {
         return CMP(*a, *b);
 }
+
+int cmp_uint16(const uint16_t *a, const uint16_t *b) {
+        return CMP(*a, *b);
+}

src/basic/sort-util.h

@@ -76,3 +76,4 @@ static inline void qsort_r_safe(void *base, size_t nmemb, size_t size, compariso
         })
 
 int cmp_int(const int *a, const int *b);
+int cmp_uint16(const uint16_t *a, const uint16_t *b);