Header library to remove dependence on runtime/

Add a new header library to remove libdexfile and others' dependence on
runtime (typically runtime/base) includes in libdexfile.  Also a small step
to tease dexlayout and profman away from relying on these as well.

Bug: 22322814
Test: make -j 50 checkbuild
      make -j 50 test-art-host-gtest

Change-Id: I38e2fe399a75f4bc6318c77a71954c00ea73ec2b
diff --git a/Android.bp b/Android.bp
index bfd86ed..e09b774 100644
--- a/Android.bp
+++ b/Android.bp
@@ -35,6 +35,7 @@
     "dt_fd_forward",
     "dt_fd_forward/export",
     "imgdiag",
+    "libartbase",
     "libdexfile",
     "oatdump",
     "openjdkjvm",