Merge pull request #237 from skosukhin/fix-acc-minmaxloc-wa

Fix minmaxloc workaround. 
1. Cray compiler supports minloc and maxloc for OpenACC and OpenMP starting version 15.
2. Nvidia compiler supports minloc and maxloc for OpenACC but not for OpenMP

rrtmgp-kernels/accel/mo_gas_optics_rrtmgp_kernels.F90

@@ -252,7 +252,7 @@ subroutine compute_tau_absorption(                &
       !$omp target teams distribute parallel do simd
       do icol = 1,ncol
         itropo_lower(icol,2) = nlay
-#if ( defined(_CRAYFTN) && defined(_OPENMP) ) || defined(__NVCOMPILER)
+#if ( defined(_CRAYFTN) && _RELEASE_MAJOR <= 14 ) || ( defined(_OPENMP) && defined(__NVCOMPILER) )
         itropo_upper(icol,1) = 1
         call minmaxloc(icol, tropo, play, itropo_lower(icol,1), itropo_upper(icol,2))
 #else
@@ -266,7 +266,7 @@ subroutine compute_tau_absorption(                &
       !$omp target teams distribute parallel do simd
       do icol = 1,ncol
         itropo_lower(icol,1) = 1
-#if ( defined(_CRAYFTN) && defined(_OPENMP) ) || defined(__NVCOMPILER)
+#if ( defined(_CRAYFTN) && _RELEASE_MAJOR <= 14 ) || ( defined(_OPENMP) && defined(__NVCOMPILER) )
         itropo_upper(icol,2) = nlay
         call minmaxloc(icol, tropo, play, itropo_lower(icol,2), itropo_upper(icol,1))
 #else