Fix ANU declaration after use for ifort compatibility

[jimmielin]

When building Cloud-J in GEOS-Chem with ifort I run into the following compile error:

src/Cloud-J/src/Core/fjx_sub_mod.f90(164): error #6415: This name cannot be assigned this data type because it conflicts with prior uses of the name.   [ANU]
      integer, intent(in)                    :: ANU   ! cloud-j input

This is because the declarations of AERSP and NDXAER dimensions use ANU, but ANU is declared two lines later. It appears that ifort enforces the Fortran standard of declaration orders where ANU must come before all usage, so I moved the declaration so the code would build correctly.

Thanks!
Haipeng

[lizziel]

Thanks for catching that!