gpgscm: Tune the hash tables.
* tests/gpgscm/scheme.c (oblist_initial_value): Increase the size of the hash table based on the number of symbols used after initializing the interpreter. (new_frame_in_env): Increase the size of the hash table based on the number of variables in the global environement.
- Signed-off-by: Justus Winter <justus@g10code.com>