package/python3: fix config directory pattern
If a platform triplet is not detected during the configure stage, the
config directory (LIBPL) defaults to `config-$VERSION`.
In this scenario, the `PYTHON3_REMOVE_USELESS_FILES` hook would fail due
to `find` incorrectly expecting a second dash and then the triplet.
Now, we glob anything after the version which will match in both cases.
Fixes: 54d48c8cad ("package/python3: miscellaneous fixups")
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>