Bumps the toolchain version to get a newer Kudu build.
Also fixes test failures resulting from changes in Kudu.
Notably error strings have changed (IMPALA-4590) and the
number of replicas must be odd (IMPALA-4589).
Note: The toolchain binaries starting with this build are
now using the toolchain binutils rather than the system
binutils.
Testing: private exhaustive build.
Change-Id: If1912f058c240fbe82b06f77e31add7755289be1
Reviewed-on: http://gerrit.cloudera.org:8080/5369
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: Internal Jenkins