Support bondeds on GPU when walls are present

User request: support offloading bondeds to GPUs when wall potentials are present. The issue is that walls add energy groups and GPUs support only one energy group. Only two checks need to be changed for this, as the bondeds will only contribute to energy group 0.

Request here on the forum: https://gromacs.bioexcel.eu/t/wall-simulations-with-gpu/7849

Implemented here in the 2024 release here: !3994 (merged)