[INTERNAL][FIX] sap.ui.table.Table: Resetting the row heights.
[INTERNAL][FIX] sap.ui.table.Table: Resetting the row heights.

- _resetRowHeights() now only resets the data row heights. Before also the column header row heights were resetted.
- _resetColumnHeaderheights() now resets the column header row heights. Before no row heights were resetted.

Change-Id: Id28c22f5ba9ea6d9e9a2bb79bb9f8d7dc1a0b84c

cschuff/openui5,nzamani/openui5,olirogers/openui5,SAP/openui5,olirogers/openui5,nzamani/openui5,cschuff/openui5,SQCLabs/openui5,SAP/openui5,SQCLabs/openui5,SAP/openui5,olirogers/openui5,SQCLabs/openui5,SAP/openui5,nzamani/openui5,cschuff/openui5