Include ppc64le for "leavebootorder"

Bug: 1172450
Change-Id: I8b6421a8eeda7153381d06bb2062f4781a2b3fee
release notes for 19.1

Change-Id: I23c685c78da371099f612931e6be468181f5f4c9
Automatic commit of release 19.1
Merge branch 'release-19' into develop