E.g., RHEL >= 7.1 uses ppc64le for reasons listed in https://bugs.openjdk.java.net/browse/JDK-8073139 . This is a follow-up to commit 7a66dbe982623be620ad6ac426fe689a434e5f51. Change-Id: I685f76d51e9775788a7fb225c6a5e2309a45ceb7