Fix return from schedule_suite.
Fix return from schedule_suite.

Schedule_suite returns the number of jobs scheduled (accounting for
filters).  Information displayed also indicates how many jobs were
run and how many were filtered out.

Fixes: 9183
Signed-off-by: Warren Usui <021fe6d8989d7bdb08c8700d8c426ea80a140097@inktank.com>

yghannam/teuthology,ktdreyer/teuthology,caibo2014/teuthology,dmick/teuthology,SUSE/teuthology,zhouyuan/teuthology,ivotron/teuthology,SUSE/teuthology,ceph/teuthology,ktdreyer/teuthology,zhouyuan/teuthology,ivotron/teuthology,robbat2/teuthology,michaelsevilla/teuthology,tchaikov/teuthology,tchaikov/teuthology,yghannam/teuthology,ceph/teuthology,robbat2/teuthology,caibo2014/teuthology,SUSE/teuthology,dmick/teuthology,michaelsevilla/teuthology,t-miyamae/teuthology,t-miyamae/teuthology,dreamhost/teuthology,dmick/teuthology,dreamhost/teuthology