[SPARK-15715][SQL] Fix alter partition with storage information in Hive

## What changes were proposed in this pull request?

This command didn't work for Hive tables. Now it does:
```
ALTER TABLE boxes PARTITION (width=3)
    SET SERDE 'com.sparkbricks.serde.ColumnarSerDe'
    WITH SERDEPROPERTIES ('compress'='true')
```

## How was this patch tested?

`HiveExternalCatalogSuite`

Author: Andrew Or <andrew@databricks.com>

Closes #13453 from andrewor14/alter-partition-storage.