Fixing tiny regression in PagedView spacing

Change-Id: I7dde2257e6079d540d648fa57a15cf865d594f35

src/com/android/launcher3/DynamicGrid.java

@@ -450,7 +450,7 @@ class DeviceProfile {
             // In portrait, we want the pages spaced such that there is no
             // overhang of the previous / next page into the current page viewport.
             // We assume symmetrical padding in portrait mode.
-            return getWorkspacePadding().left;
+            return 2 * getWorkspacePadding().left;
         }
     }