GF-60073: Don't call restoreFocus for -1 case, since that may be called during resize, and the list shouldn't steal focus for every resize.  Remove unnecessary pageForIndex call, and save _subChildToFocus in focusOnIndex as well.
DCO-1.1-Signed-Off-By: Kevin Schaaf <kevin.schaaf@lge.com>
Merge pull request #1110 from enyojs/GF-60073-2-kevinpschaaf

GF-60073: Don't spot first item in focusOnIndex(-1) case