Import patches-unapplied version 2.486 to ubuntu/bionic-proposed

Imported using git-ubuntu import.

Changelog parent: faa28a6472

New changelog entries:
  [ Michael Hudson-Doyle ]
  * Install grub-ieee1275 instead of grub2 on ppc64el; grub2 is a dummy
    transitional package in universe.

debian/changelog

@@ -1,3 +1,11 @@
+livecd-rootfs (2.486) bionic; urgency=medium
+
+  [ Michael Hudson-Doyle ]
+  * Install grub-ieee1275 instead of grub2 on ppc64el; grub2 is a dummy
+    transitional package in universe.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Wed, 06 Dec 2017 14:22:43 -0800
+
 livecd-rootfs (2.485) bionic; urgency=medium
 
   [ Michael Hudson-Doyle ]

live-build/ubuntu-cpc/hooks/034-disk-image-ppc64el.binary

@@ -31,7 +31,7 @@ install_grub() {
     mount_partition "${rootfs_dev_mapper}" mountpoint
 
     chroot mountpoint apt-get -qqy update
-    chroot mountpoint apt-get -qqy install grub2
+    chroot mountpoint apt-get -qqy install grub-ieee1275
     chroot mountpoint apt-get -qqy remove --purge grub-legacy-ec2
 
     # set the kernel commandline to use hvc0