[NUI] Fix ScrollableBase maxScrollDistance issue (#2051)

[NUI] Fix ScrollableBase maxScrollDistance issue (#2051)

[TDAF-1221] issue

1. If the size of ScrollableBase is changed, maxScrollDistance update is required.
  maxScrollDistance: Maximum range that ScrollableBase can scroll
2. Change maxScrollDistance by calling OnSCrollingChildRelayout at OnMeasure when size changes.
3. Currently, maxScrollDistance is updated based on ContentContainer size only.
  Change this to be modified even if the ScrollableBase size is changed

Signed-off-by: huiyu.eun <huiyu.eun@samsung.com>