add nvhpc compiler flags to cmake

[JorgeG94]

Description
Add the necessary flags to compile FMS with NVHPC using the CMake build system

Fixes # (issue)

How Has This Been Tested?
CMake does not have the unit tests connected to the build system but building using the autoconf mode with NVHPC fails most of the tests. Which I believe is known.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• New check tests, if applicable, are included
• make distcheck passes

[JorgeG94]

When building with nvhpc it could not find parse.inc which is here

[rem1776]

Thanks for putting in these changes! I have some other cmake changes (#1694 ) that will be going in soon so this might need an update after that is merged but based on what im seeing it shouldn't be anything major.

[JorgeG94]

We should push up the minimum cmake version - before cmake 3.20 there is no NVHPC compiler it goes back to the PGI one for which no flags are defined. Is there a reason to keep the cmake version minimum at 3.12?

[JorgeG94]

only these tests fail (with nvhpc 24.9)

The following tests FAILED:
          3 - test_axis_utils2 (Failed)
          5 - test_column_diagnostics (Failed)
          6 - test_coupler (Failed)
          9 - test_data_override2_mono (Failed)
         10 - test_data_override2_ongrid (Failed)
         11 - test_data_override2_scalar (Failed)
         19 - test_diag_manager2 (Failed)
         37 - test_zbounds_limits (Failed)
         42 - test_atmosphere_io (Failed)
         43 - test_bc_restart (Failed)
         44 - test_collective_io (Failed)
         45 - test_fms2_io (Failed)
         46 - test_global_att (Failed)
         47 - test_io_simple (Failed)
         48 - test_io_with_mask (Failed)
         52 - test_interpolator2 (Failed)
         54 - test_mosaic2 (Failed)
         56 - test_global_arrays (Failed)
         62 - test_mpp_clock_begin_end_id (Failed)
         63 - test_mpp_domains2 (Failed)
         73 - test_mpp_nesting (Failed)
         94 - test_random_numbers (Failed)
         95 - test_sat_vapor_pres (Failed)
         96 - test_string_utils (Failed)
         97 - test_time_interp2 (Failed)
         99 - test_topography (Failed)
Errors while running CTest

[rem1776]

We should push up the minimum cmake version - before cmake 3.20 there is no NVHPC compiler it goes back to the PGI one for which no flags are defined. Is there a reason to keep the cmake version minimum at 3.12?

No I don't think so, feel free to bump it up if needed.