sos: adapt to engine sosreport to sos 3.2
sos: adapt to engine sosreport to sos 3.2

SOS plugins have been refactored between sos 2 and sos 3,
enabling additional plugins for sos > 3

Change-Id: I6a875df5d3cd7f8946092fe9b0976b6541f9a1d4
Bug-Url: https://bugzilla.redhat.com/1218526
Signed-off-by: Sandro Bonazzola <fcb014d63786651910af5db2ecc5316c668188ef@redhat.com>

oVirt/ovirt-log-collector,oVirt/ovirt-log-collector,oVirt/ovirt-log-collector