partition by literal in window function

[jackylee-ch]

Describe the bug
We met this problem with literal in window function.

java.lang.ClassCastException: org.apache.spark.sql.catalyst.expressions.Literal cannot be cast to org.apache.spark.sql.catalyst.expressions.AttributeReference
	at com.intel.oap.execution.ColumnarWindowExec.$anonfun$doExecuteColumnar$4(ColumnarWindowExec.scala:270)
	at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237)
	at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
	at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
	at scala.collection.TraversableLike.map(TraversableLike.scala:237)
	at scala.collection.TraversableLike.map$(TraversableLike.scala:230)
	at scala.collection.AbstractTraversable.map(Traversable.scala:108)
	at com.intel.oap.execution.ColumnarWindowExec.$anonfun$doExecuteColumnar$1(ColumnarWindowExec.scala:270)
	at com.intel.oap.execution.ColumnarWindowExec.$anonfun$doExecuteColumnar$1$adapted(ColumnarWindowExec.scala:236)
	at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsWithIndex$2(RDD.scala:915)

To Reproduce

create table test(a string, b string) using parquet;
select col_lit, b, row_number() over (partition by col_lit, a order by int(b) asc) as c
from (select "abc" as col_lit, a, b from test)

Expected behavior
None exception thrown.

Additional context
None