head: add new OPAL entry points to the NACA
head: add new OPAL entry points to the NACA

The NACA now incorporates the entry points for the primary and secondary
threads.

Signed-off-by: Oliver O'Halloran <3dfaff8fa6ae977f042064a112a6aac576279b9b@gmail.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

qemu/skiboot,shenki/skiboot,shenki/skiboot,legoater/skiboot,stewart-ibm/skiboot,shenki/skiboot,legoater/skiboot,mikey/skiboot,legoater/skiboot,mikey/skiboot,open-power/skiboot,stewart-ibm/skiboot,legoater/skiboot,open-power/skiboot,qemu/skiboot,qemu/skiboot,legoater/skiboot,open-power/skiboot,mikey/skiboot,stewart-ibm/skiboot,open-power/skiboot,qemu/skiboot,open-power/skiboot,shenki/skiboot,qemu/skiboot,shenki/skiboot