[VL] Support read Iceberg equality delete file MOR table

### Description

The support for reading Iceberg equality delete file MOR table will soon be added in Velox upstream, and corresponding support will also be needed in Gluten.

Velox PR: https://github.com/facebookincubator/velox/pull/11088
Velox design doc: https://github.com/facebookincubator/velox/issues/8748