engine: removed unused PPC network drivers
engine: removed unused PPC network drivers

Removed e1000 and rtl8139 network drivers from
osinfo-defaults.properties configuration file for ppc64 architecture.

Change-Id: Icff0b9d6862f5bc7bc03a16738eea434698d42ab
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1199208
Signed-off-by: Shmuel Melamud <2535ff6dd8d6ee039abf6cb23d587c980803da82@redhat.com>

yingyun001/ovirt-engine,eayun/ovirt-engine,zerodengxinchao/ovirt-engine,yingyun001/ovirt-engine,walteryang47/ovirt-engine,yapengsong/ovirt-engine,zerodengxinchao/ovirt-engine,yapengsong/ovirt-engine,yingyun001/ovirt-engine,walteryang47/ovirt-engine,zerodengxinchao/ovirt-engine,OpenUniversity/ovirt-engine,walteryang47/ovirt-engine,walteryang47/ovirt-engine,eayun/ovirt-engine,OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine,yapengsong/ovirt-engine,eayun/ovirt-engine,eayun/ovirt-engine,OpenUniversity/ovirt-engine,yingyun001/ovirt-engine,yapengsong/ovirt-engine,zerodengxinchao/ovirt-engine,OpenUniversity/ovirt-engine,yingyun001/ovirt-engine,walteryang47/ovirt-engine,zerodengxinchao/ovirt-engine,yapengsong/ovirt-engine,eayun/ovirt-engine