[Tizen] ActorSizer::RelayoutDependentOnXXX return default value

[Tizen] ActorSizer::RelayoutDependentOnXXX return default value

Before refactoring, when mRelayoutData doesn't exist,
RelayoutDependentOnChildrenBase return true.

Because DEFAULT state is "ResizePolicy::USE_NATURAL_SIZE" and
It's case s.t. RelayoutDependentOnChildrenBase is true.

After refactoring, if mRelayoutData is null, it always return false.

This patch just sync with previous behavior.

Change-Id: I8e5c9ba7a456baa2a8d8c0473c06feb6da469a87
Signed-off-by: Eunki, Hong <eunkiki.hong@samsung.com>