Use the ppc64le_linuxXX sysname for ppc64le builds
Commit
191e18eb (Open ppc64le_linux sysname space) added the
ppc64le_linux26 sysname, but it still must be manually specified when
running on ppc64le. Use the ppc64le_linux26 by default on ppc64le, so
we can compile without needing to specify an explicit sysname.
Change-Id: I5abbdde06622d5f2b067bfd003f9d4cd51c56f1a
Reviewed-on: https://gerrit.openafs.org/13593
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>