testsuite: rhsm-entitlement aut must not fail with more cert files

https://bugzilla.redhat.com/show_bug.cgi?id=1140224#c6

Signed-off-by: Jakub Filak <jfilak@redhat.com>
testsuite: use the entitlement certs with 'rhsm'

Related to #1139987

Signed-off-by: Jakub Filak <jfilak@redhat.com>
testsuite: do not user uReport_URL in reporter-rhtsupport

Related to #1139987

Signed-off-by: Jakub Filak <jfilak@redhat.com>