Make car support lib build with updated A/R dimensions.

Also, update the layout of the car_activity so that the drawer text is
laid out at keyline2. The drawer icon is centered in the margin that is
left.

Also, fold car_activity changes back into one layout.

Bug: 30877465
Change-Id: I067f3cf4041856554c8268d804da97cb914dd284
diff --git a/.gitignore b/.gitignore
index 18b96fa..5bf05e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 *~
 .project
 .classpath
+*.iml
+gen/