Fix svace issue on text-geometry (unsigned int < 0)
Fix svace issue on text-geometry (unsigned int < 0)

CharacterIndex type is unsigned int. So it cannot be negative

Change-Id: I9f9c6868f103ee45695a4fd87dc4cafd0819f471
Signed-off-by: Eunki, Hong <301831f1139537c1cbbc3eb529a9eda692d8c1bb@samsung.com>

dalihub/dali-toolkit,dalihub/dali-toolkit,dalihub/dali-toolkit,dalihub/dali-toolkit