core, engine: Add more OSes for the ppc64 architecture

This change includes more OSes which are compatible with the ppc64
architecture. Currently only SLES and RHEL are added in osinfo.

Change-Id: I32910ebc71e83fe24349a5b7c5598e70572c7b47
Signed-off-by: Vitor de Lima <vitor.lima@eldorado.org.br>