fix: Create .filelist in ubuntu-cpc project binary hooks that do not use create_manifest shared function (LP: #2033751)

ubuntu-cpc project binary hooks were not all producing .filelist files as they were not using
the create_manifest shared function.

This commit ensures the disk-image-uefi, disk-image-ppc64el and disk-image-uefi-non-cloud hooks create
a filelist during build.

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

@@ -75,6 +75,11 @@ make_ext4_partition "${rootfs_dev_mapper}"
 mkdir mountpoint
 mount "${rootfs_dev_mapper}" mountpoint
 cp -a chroot/* mountpoint/
+
+# the image has been modified from its disk-image-uefi base so the manifest and filelist should be regenerated
+chroot mountpoint dpkg-query -W > binary/boot/filesystem.packages
+(cd mountpoint && find -xdev) | sort > binary/boot/filesystem.filelist
+
 umount mountpoint
 rmdir mountpoint
 

live-build/ubuntu-cpc/hooks.d/base/disk-image-uefi-non-cloud.binary

@@ -431,6 +431,10 @@ EOF
     rm mountpoint/tmp/device.map
     umount mountpoint/boot/efi
     mount
+
+    # create sorted filelist as the very last step before unmounting
+    (cd mountpoint && find -xdev) | sort > binary/boot/filesystem.filelist
+
     umount_partition mountpoint
     rmdir mountpoint
 }

live-build/ubuntu-cpc/hooks.d/base/disk-image-uefi.binary

@@ -151,6 +151,10 @@ install_grub() {
     rm mountpoint/tmp/device.map
     umount mountpoint/boot/efi
     mount
+
+    # create sorted filelist as the very last step before unmounting
+    (cd mountpoint && find -xdev) | sort > binary/boot/filesystem.filelist
+
     umount_partition mountpoint
     rmdir mountpoint
 }