Increase char limits as requested by I18N team

Fixes: 129505642
Change-Id: Ie9d0341d4c50203d9e07285ae988c9dda64451e5
diff --git a/res/values/strings.xml b/res/values/strings.xml
index db85aaa..e78e471 100755
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -31,7 +31,7 @@
     <string name="grid_title">Grid</string>
 
     <!-- Title of a section of the customization picker where the user can select a Wallpaper.
-        [CHAR LIMIT=15] -->
+        [CHAR LIMIT=19] -->
     <string name="wallpaper_title">Wallpaper</string>
 
     <!-- Label for a button that allows the user to apply the currently selected Theme.