AvroReadSupport.setRequestedProjection in 1.11.1+ not backwards compatible with MAPS

using AvroReadSupport.setRequestedProjection in 1.11.1 reading a 1.10.0 generated parquet file sets MAP fields to null (and vice versa 1.10.0 reader against a 1.11.1 generated file) 

- Not using a projected schema works, the map fields are converted correctly.
In my case. Parquet file is generated by hive 
```java

CREATE TABLE parquetmaptest (
a string,
b MAP
)
STORED AS PARQUET
tblproperties(
"parquet.compression"="SNAPPY"
);
insert into parquetmaptest select "a",map("k1","v1","k2","v2");
```

Using parquet-avro 1.11.1 (and appropriate dependencies) result in field "b" being null. 
```java

data:null
row:{"a": "a", "b": null}
```
Using parquet-avro 1.11.0 (and appropriate dependencies) result in field "b" being  the right map value.  
```java

data:{k1=v1, k2=v2}
row:{"a": "a", "b": {"k1": "v1", "k2": "v2"}}
```
 

**Reporter**: [Bil Bingham](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=bilbingham)
#### Original Issue Attachments:
- [PQMapTest.java](https://issues.apache.org/jira/secure/attachment/13024749/PQMapTest.java)

_{**Note**: *This issue was originally created as [PARQUET-2039](https://issues.apache.org/jira/browse/PARQUET-2039). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

Beginne mit der angehängten PQMapTest.java und dem Pfad AvroReadSupport.setRequestedProjection und vergleiche parquet-avro 1.11.1 mit 1.10.0 anhand der von Hive erzeugten MAP-Datei. Reproduziere zuerst den Fehler beim Lesen mit Projektion; fertig ist es, wenn projizierte Map-Felder weiterhin befüllt bleiben, wenn Dateien und Reader jeweils eine der beiden Versionen verwenden.

Vom Indexierungsmodell aus dem Issue-Text verfasst.