[patch, fortran] Fix PR 61968

[Dominique d'Humières]

Hi Thomas,

> …
> This also clears the ICE for my inline packing patch which
> was reported by Dominique.
> …

Not for me, I still get

% gfc pr61968.f90 -c -O3
pr61968.f90:32:0:

   32 |     call test_lib (a, int (sizeof (a), kind=c_size_t))
      | 
internal compiler error: in gfc_trans_create_temp_array, at fortran/trans-array.c:1265

TIA

Dominique