Changed Grid layout on home. More space at the bottom.

Strange behavior: cell height has to be increased to increase padding.
I guess this is because the cells have to fit in the screen height and are
rescaled, with a top alignement thus creating padding at the bottom.

Bug: http://b/issue?id=3053235

Change-Id: I727ab091a736916b7efc1c05a80c5b006bc56f67
diff --git a/res/values-port/dimens.xml b/res/values-port/dimens.xml
index 65a3fd3..37f293c 100644
--- a/res/values-port/dimens.xml
+++ b/res/values-port/dimens.xml
@@ -16,5 +16,5 @@
 
 <resources>
     <dimen name="workspace_cell_width">80dip</dimen>
-    <dimen name="workspace_cell_height">100dip</dimen>
+    <dimen name="workspace_cell_height">122dip</dimen>
 </resources>