Since a few days SLES 12 SP4 has been officially certified for SAP HANA – Min. Requirements:
HANA 1.0 SPS12 revision 122.22
HANA 2.0 SP03 revision 35 (not yet released)
Only known requirement for scale-out systems: package libssh2-1
launchpad.support.sap.com/#/notes/2205917