Fix discovered_interpreter_python variable
Fix discovered_interpreter_python variable

This change fixes the discovered_interpreter_python variable
name that was "discovered_python_interpreter" and caused a
failure in OSP deployments.

Signed-off-by: fmount <e4471f5362e63527847b85ad100e4685bab084fa@redhat.com>

ceph/ceph-ansible,ceph/ceph-ansible