Partial revert of https://git.opendaylight.org/gerrit/#/c/27874/

Partial revert of https://git.opendaylight.org/gerrit/#/c/27874/

Patch https://git.opendaylight.org/gerrit/#/c/27874/ made improvements
that significantly sped up config system boot and helped the SFC project
but a couple other projects are seeing a timing issue where a
ModuleFactory isn't found and the config pusher fails. This is due to
the speed up and that YangModuleInfo's are now scraped from RESOLVED bundles
and thus are available quicker but ModuleFactory's are scaped from
ACTIVE bundles.

While the ModuleFactory issue is addressed, I'll partially revert the
prior changes to go back to scanning ACTIVE bundles for YangModuleInfo.

Change-Id: Icd3a51a049a940ad60a4bd0071e3c969167275d3
Signed-off-by: Tom Pantelis <tpanteli@brocade.com>