platforms/habanero: sync platform definition with palemtto
platforms/habanero: sync platform definition with palemtto

We're missing callbacks for elog_commit and exit.

Signed-off-by: Jeremy Kerr <68a658b44bbaefab3ef5cd231967195fc0ff9d69@ozlabs.org>

ddstreet/skiboot,open-power/skiboot,stewart-ibm/skiboot,open-power/skiboot,legoater/skiboot,jk-ozlabs/skiboot,jk-ozlabs/skiboot,qemu/skiboot,shenki/skiboot,qemu/skiboot,open-power/skiboot,qemu/skiboot,cyrilbur-ibm/skiboot,legoater/skiboot,mikey/skiboot,open-power/skiboot,csmart/skiboot,ddstreet/skiboot,mikey/skiboot,ddstreet/skiboot,legoater/skiboot,csmart/skiboot,shenki/skiboot,csmart/skiboot,stewart-ibm/skiboot,apopple/skiboot,jk-ozlabs/skiboot,cyrilbur-ibm/skiboot,stewart-ibm/skiboot,shenki/skiboot,apopple/skiboot,shenki/skiboot,mikey/skiboot,open-power/skiboot,legoater/skiboot,cyrilbur-ibm/skiboot,legoater/skiboot,qemu/skiboot,shenki/skiboot,qemu/skiboot,apopple/skiboot