[docs] Add 1.17.0 release notes to previous release notes

Change-Id: Ib423839e201c6c7d12d0dc0f2c25d97252293ad8
Reviewed-on: http://gerrit.cloudera.org:8080/20480
Tested-by: Kudu Jenkins
Reviewed-by: Alexey Serbin <alexey@apache.org>
1 file changed