GEOS-Chem submod update: Merge PR #2379 (Disable FAST-JX except for Hg)

This commit informs the GCClassic superproject about the following
commits that were pushed to the GitHub geoschem/geos-chem repository:

0147de618 Merge PR #2379 (Disable FAST-JX except for Hg simulation)

This PR adds a runtime error trap to disable FAST-JX for all simulations
except Hg.  Eventually Hg will use Cloud-J pending an update.

Signed-off-by: Bob Yantosca <[email protected]>