[MINOR][DOCS] Update supported versions for Hive Metastore

## What changes were proposed in this pull request?

Since SPARK-18112 and SPARK-13446, Apache Spark starts to support reading Hive metastore 2.0 ~ 2.1.1. This updates the docs.

## How was this patch tested?

N/A

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #17612 from dongjoon-hyun/metastore.