Some resource fixes for drop target

> Making it singleline with ellipsis everywhere
> Decreasing the text size on smaller devices
> Decreasing char limit for various labels

Bug: 17563793
Bug: 17938450
Change-Id: I8ad1a156de0601d07419b2cc6418389bc2e24a4e
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 2c9e689..20bc7cc 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -62,6 +62,7 @@
 
     <!-- Drag padding to add to the bottom of drop targets -->
     <dimen name="drop_target_drag_padding">14dp</dimen>
+    <dimen name="drop_target_text_size">14sp</dimen>
 
 <!-- Dragging -->
     <!-- the area at the edge of the screen that makes the workspace go left