IMPALA-5473: [DOCS] Document TLS min version & cipher options
IMPALA-5473: [DOCS] Document TLS min version & cipher options

Under the doc JIRA IMPALA-6065.

Change-Id: Ia1705262f8c01e38c616541d1c48f5d0cad5498e
Reviewed-on: http://gerrit.cloudera.org:8080/8401
Reviewed-by: Michael Brown <97e4d5d0e400e5ad37382425ea95bde8b3933403@cloudera.com>
Reviewed-by: Sailesh Mukil <a0dfbcae8e92bb4f48772d8c6743e175570f6f74@cloudera.com>
Tested-by: Impala Public Jenkins

cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala