Move sizeof to second argument in calloc calls

Clears -Wcalloc-transposed-args warnings from gcc 14.1, such as:

../dix/main.c:165:42: warning: ‘calloc’ sizes specified with ‘sizeof’ in the
 earlier argument and not in the later argument [-Wcalloc-transposed-args]
  165 |             serverClient = calloc(sizeof(ClientRec), 1);
      |                                          ^~~~~~~~~
../dix/main.c:165:42: note: earlier argument should specify number of
 elements, later size of each element

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1606>

config/hal.c

@@ -102,7 +102,7 @@ get_prop_string_array(LibHalContext * hal_ctx, const char *udi,
         for (i = 0; props[i]; i++)
             len += strlen(props[i]);
 
-        ret = calloc(sizeof(char), len + i);    /* i - 1 commas, 1 NULL */
+        ret = calloc(len + i, sizeof(char));    /* i - 1 commas, 1 NULL */
         if (!ret) {
             libhal_free_string_array(props);
             return NULL;