[Tizen] If ellipsis is true. then we should used index first position.

[Tizen] If ellipsis is true. then we should used index first position.

If ellipsis is true, the characterIndex value is changed.

bool EllipsisLine ()
{
...
lineRun-> characterRun.characterIndex = ellipsisLayout.characterIndex;
}

In GetLineOfCharacter (), the line index we want is 0, but another value
is returned. ex) index = 1;

The lineRun.alignmentOffset value obtained through the wrong line index
may be wrong. Ex) lineRun.alignmentOffset: 16312432575010308096

So if ellipsis is true. then we should used index first position.

Change-Id: I7912e1ea6f94cc53c272ba7bf424f07a1174af20