fix XCALLOC() against GCC 14 -Wcalloc-transposed-args
Fix use of XCALLOC() macro against GCC 14 directive
-Wcalloc-transposed-args that makes GCC to complain with an warning/error
trace message like the below when 1st argument is given by sizeof().
warning: 'calloc' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Wcalloc-transposed-args]
No functional changes.
Signed-off-by: Etienne Carriere <[email protected]>