Revert "libpore: Fix incorrect mtspr instruction generation"
Revert "libpore: Fix incorrect mtspr instruction generation"

This reverts commit 65f9abea8e8cfd7f711a5c54217b5505826ff497.

Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

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