lxc: Create a separate method to handle IPv{4, 6} outside parser
lxc: Create a separate method to handle IPv{4, 6} outside parser

The new method called lxcNetworkParseDataIPs() is responsible to handle
IPv{4,6} settings now. The idea is let lxcNetworkWalkCallback() method
handle all entries related to network definition only.

Signed-off-by: Julio Faracco <a9e27ab562b8d02c0041eb70cde6fe3858219fb7@gmail.com>
Reviewed-by: John Ferlan <87558058f6f829e5ec976c8ef960720af4ff9c7d@redhat.com>

andreabolognani/libvirt,jardasgit/libvirt,crobinso/libvirt,crobinso/libvirt,andreabolognani/libvirt,nertpinx/libvirt,eskultety/libvirt,andreabolognani/libvirt,libvirt/libvirt,olafhering/libvirt,jfehlig/libvirt,nertpinx/libvirt,jardasgit/libvirt,jardasgit/libvirt,olafhering/libvirt,fabianfreyer/libvirt,eskultety/libvirt,crobinso/libvirt,jfehlig/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,zippy2/libvirt,libvirt/libvirt,olafhering/libvirt,libvirt/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,eskultety/libvirt,crobinso/libvirt,jfehlig/libvirt,nertpinx/libvirt,jardasgit/libvirt,libvirt/libvirt,eskultety/libvirt,zippy2/libvirt,jfehlig/libvirt,eskultety/libvirt,nertpinx/libvirt,olafhering/libvirt,zippy2/libvirt,nertpinx/libvirt,zippy2/libvirt