emulators/qemu-powernv: rename emulators/qemu-ppcnv and update to POWER9

[kbowling]

Summary

Update to benh's qemu power9 branch which adds support for features like radix mmu and phb4.

I would like to take maintainership of this port with Mark's permission.

Test Plan

https://people.freebsd.org/~kbowling/logs/qemu-powernv-3.0.50.log

[krion]

As it's port rename, you have to repocopy it to preserve history and commit with new changes.

[timur]

Also, an entry to the MOVED file should be added. Maybe along with the entry in UPDATING.

[kbowling]

Add MOVED entry. This doesn't need an updating entry there are only a couple users and I am in communication with them.

This is a repo move it just doesn't get picked up by phabricator, sorry I won't use arc.
kev-ws-aurora% svn st
M MOVED
M emulators/Makefile
A + emulators/qemu-powernv

> moved from emulators/qemu-ppcnv

M + emulators/qemu-powernv/Makefile
M + emulators/qemu-powernv/distinfo
M + emulators/qemu-powernv/pkg-descr
D emulators/qemu-ppcnv

> moved to emulators/qemu-powernv

[timur]

emulators/qemu-powernv/Makefile

13

And here also?

17–18

Sorry, and what's the reason for += here instead of just =?

[kbowling]

It's the way it was, dropped them.

Take maintainer per conversation on IRC with linimon.

[mmacy]

@krion @timur poke

[krion]

I approve if repocopy is done.