make namd interface=tcl generic

stacks/pinot-noir/packages_acc_cuda.yaml

@@ -49,7 +49,7 @@ packages:
     require: ['+cuda', 'cuda_arch={cuda_arch}']
 
   namd:
-    require: ['+cuda', '+single_node_gpu', 'cuda_arch={cuda_arch}', 'interface=tcl']
+    require: ['+cuda', '+single_node_gpu', 'cuda_arch={cuda_arch}']
 
   nvshmem:
     require:

stacks/pinot-noir/packages_stack.yaml

@@ -234,6 +234,9 @@ packages:
   mumps:
     require: ['+openmp', '+metis', '+parmetis']
 
+  namd:
+    require: ['interface=tcl']
+
   netcdf-c:
     prefer: ['+mpi']